SOUTHWEST RESEARCH INSTITUTE ®

6220 CULEBRA ROAD i POST OFFICE DRAWER 28510 i SAN ANTONIO, TEXAS, USA 78228-0510 i (210) 684-5111 i WWW.SWRI.ORG 

HTTP://ENGINEANDVEHICLE .SWRI.ORG

ENGINE, EMISSIONS, AND VEHICLE RESEARCH DIVISION ISO 9001 CERTIFIED

FAX: (210) 522-3950 ISO 14001 Certified 

SAN ANTONIO, TEXAS 

HOUSTON, TEXAS i WASHINGTON, DC i ANN ARBOR, MI 

July 29, 2005 

TO: Desert Research Institute 

 2215 Raggio Parkway 

 Reno, NV 89512-1095 

ATTN: Dr. Barbara Zielinska 

SUBJECT: Final report for SwRI® Project 03.05383, “Evaporative and Tailpipe Emissions 

Support for S211b Tier 2 Exposure Study” 

1.0 INTRODUCTION 

 This report describes the work performed during the summer of 2002 and the winter of 

2004/2005 by the Department of Engine and Emissions Research (DEER) at Southwest Research 

Institute® (SwRI) in support of Desert Research Institute’s (DRI) project entitled “S211b Tier 2 

Exposure Study.” 

2.0 STATEMENT OF WORK 

 The objective of this project was to provide DRI with a variety of support activities, test 

vehicles, a support vehicle, and to perform laboratory testing, all in support of DRI’s S211b Tier 

2 Exposure Study performed for the American Petroleum Institute. The portion of DRI’s study 

performed in the San Antonio, Texas area consisted of on-road emissions measurements using a 

trailing vehicle, garage testing of exhaust and evaporative emissions, and laboratory exhaust and 

evaporative emissions measurements. SwRI provided logistics support to DRI personnel for the 

on-road and garage testing, but performed no emissions measurements for these tasks. Two test 

vehicles were procured for the program (a 1993 Toyota Camry V6 and a 1995 Ford F-150 V8), 

as well as a Dodge Caravan as a trailing vehicle for the on-road work in San Antonio. These 

vehicles were used for the on-road testing and garage testing, and then were utilized for hot soak 

evaporative and FTP exhaust emissions testing in the SwRI laboratory. All tests were performed 

with the vehicles in normal and in a malfunction condition. Tests were performed while 

operating on summer and winder grade fuels, from Houston, Atlanta, and Chicago. Summer 

grade fuels were used in 2002 and winter grade fuels were used in 2005. Selected properties of 

these fuels are presented in Table 1. 

 
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 2 of 9 

Report 03-05383 

TABLE 1. TEST FUEL PROPERTIES 

Summer 2002 Winter 2005 

Parameter, method Houston Atlanta Chicago Houston Atlanta Chicago 

GA-4614 GA-4637 GA-4640 GA-5427 GA-5437 GA-5440

ASTM D5845 Petrospec®

MeOH, wt% N/A N/A N/A 0 0 0 

EtOH, wt% (D5599) N/A (0) (10.75) 0 0 10 

MTBE, wt% (D5599) (9.86) N/A N/A 10.7 0.4 0.6 

ETBE, wt% N/A N/A N/A 0 0 0 

TAME, wt% N/A N/A N/A 1.4 0 0 

DIPE, wt% N/A N/A N/A 0 0.2 0.5 

TBA, wt% N/A N/A N/A 0.3 0 0 

O2 Total wt% (D5599) (1.81) (0.01) (3.73) 2.23 0.1 3.66 

Benzene, vol% (D5580) (0.62) (1.24) (0.84) 0.5 1.06 1.03 

Aromatic, vol% (D1319) (19.9) (38.4) (17.1) 17.5 21.4 16.3 

Olefins, vol% (17.3) (10.5) (9.1) 9.4 6.0 15.2 

Saturate, vol% (52.8) (51.1) (70.9) 60.8 72.0 58.0 

RON N/A N/A N/A 92.2 90.5 92.3 

MON (D2700) N/A (81.9) (83.0) 83.5 82.9 82.8 

R+M/2 N/A N/A N/A 87.8 86.7 87.5 

T50, degF (D86) (190) N/A N/A 184 208 164 

T90, deg F (D86) (327) N/A N/A 330 336 319 

E200, % N/A N/A N/A 52 40 59 

E300, % N/A N/A N/A 82 83 83 

RVP, ASTM D5191 7.01 6.29 6.93 10.20 10.87 14.16 

API Gravity, ASTM D4052 61.1 55.5 63.7 62.1 60.3 62.8 

Specific Gravity, 

ASTM D4052 0.7347 0.7568 0.7390 0.7308 0.7379 0.7282 

Carbon content, wt%, 

ASTM D5291 84.77 86.76 82.30 83.99 86.28 80.85 

Hydrogen content, wt%, 

ASTM D5291 14.04 13.14 13.71 13.95 13.25 13.64 

In some instances, two different methods were utilized to determine fuel properties. In these instances, 

the second method and corresponding results are presented in parentheses. 

 

 SwRI utilized malfunction conditions determined in the 2002 portion of the study to give 

exhaust hydrocarbon emissions on the order of two grams per mile. These induced malfunctions 

included removal of the catalysts on both vehicles plus a calibrated manifold air leak on the 

Toyota Camry. The malfunction for the hot soak portion of the SHED test consisted simply of 

disconnecting the evaporative canisters from the vehicles. 
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 3 of 9 

Report 03-05383 

 For the dynamometer FTP exhaust emissions testing, regulated exhaust emissions (total 

hydrocarbons, THC; non-methane hydrocarbons, NMHC; carbon monoxide, CO; and oxides of 

nitrogen, NOx), carbon dioxide, CO2; and speciated volatile organic compound (VOC) emissions 

(to include MTBE, ethanol, benzene, toluene, ethylbenzene, xylene, 1,3-butadiene, 

formaldehyde, and acetaldehyde) were determined for each test. During hot soak tests, total 

hydrocarbon and VOC emissions (as above except without aldehyde/ketone measurements) were 

determined. A sealed housing for evaporative determinations (SHED) was utilized for the hot 

soak tests. The test plan followed for the laboratory testing is presented in Table 2. 

TABLE 2. TEST PLAN 

STEP DESCRIPTION 

1 Verify proper mechanical operation of the test vehicle.

2 Remove canister from test vehicle.

3 Purge canister with 300°F “zero” nitrogen at 20L/min for five hours, reattach canister.

4 Drain fuel tank and fill to 40 percent capacity with test fuel.

5 Perform a 2-hour diurnal heat build from 70 to 120°F at a ramp rate of 0.4°F/min.

6 Operate vehicle on chassis dynamometer over one UDDS cycle.

7 Turn engine off for five minutes.

8 Start engine and idle for one minute.

9 Turn engine off for one minute.

10 Start engine and idle for one minute.

11 Remove canister from vehicle and purge canister with “zero” air for 60 minutes.

12 Reattach canister, drain fuel from tank, and fill to 40 percent capacity with chilled test fuel.

13 Conduct one hour DHB (no emission measurements).

14 Operate vehicle on chassis dynamometer over one UDDS.

15 Soak vehicle overnight.

16 Next day prior to the cold-start exhaust portion of the FTP, conduct one-hour Diurnal Heat Build. (DHB). 

17 Conduct 3-bag FTP exhaust emission test. Measure regulated gaseous emissions and VOC. emissions.

18 Conduct the Hot Soak segment of the SHED test immediately following the exhaust emissions testing. 

19 Switch vehicle to malfunction condition, and disconnect evaporative canister.

20 Repeat Steps 6 through 10 and Steps 14 through 18.

21 Repeat Steps 1 through 20 for each of the remaining two test fuels. 

22 Switch to next test vehicle, and repeat Steps 1 through 21. 
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 4 of 9 

Report 03-05383 

3.0 TEST PROCEDURES 

 The exhaust emission portion of the FTP utilizes the Urban Dynamometer Driving 

Schedule (UDDS), which is 1372 seconds in duration. The UDDS is divided into two segments; 

the first consisting of 505 seconds, and the second consisting of 867 seconds. A FTP is 

composed of a 505-second cold-transient (bag 1) portion and an 867-second cold stabilized (bag 

2) portion, followed by a ten-minute soak and then a 505-second hot-transient (bag 3) portion. A 

summary of the cycle duration, driving distance, and average speed is given in Table 3. The FTP 

driving schedule with the cold- and hot-transient test segments identified is given in Figure 1. 

 The evaporative emission portion of the FTP as conducted in this study consisted of a 

one-hour Diurnal Heat Build (DHB) (40 CFR 86.133-90) and a one-hour Hot Soak Loss Test 

(HSL) (40 CFR 86.138-90). Total hydrocarbons and VOC emissions were recorded only during 

the HSL segment of the test. Prior to the cold-start exhaust portion of the FTP, the DHB 

evaporative segment of the FTP was conducted by fueling the test vehicle to 40 percent of tank 

capacity with test fuel at a temperature below 55°F. A heating blanket was attached to the 

outside of the fuel tank, and a thermocouple placed in the fuel inside the fuel tank was connected 

to the computer controller. The fuel inside the tank was raised to a nominal temperature of 60°F, 

at which point the DHB segment of the test began. The fuel temperature was raised at a linear 

rate of 0.4°F per minute for the 60 minute test. The final nominal temperature was 84°F. 

 The HSL segment of the evaporative emission test was conducted immediately following 

FTP exhaust emission testing. The vehicle was allowed to “soak” in the enclosure for one hour. 

Total hydrocarbon and VOC emissions were measured at the beginning and end of the one hour 

segment to permit calculation of hot soak evaporative emissions. Alcohol measurements were 

included only for the Chicago fuel. 

FIGURE 1. FTP DRIVING SCHEDULE 
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 5 of 9 

Report 03-05383 

TABLE 3. SUMMARY OF FTP DRIVING SCHEDULE 

Segment Duration, 

Seconds

Distance, 

Miles

Average Speed, 

Miles/Hr.

Transient Phase 505 3.60 25.7 

Stabilized Phase 867 3.90 16.2 

UDDS 1372 7.50 19.7

 The following sections describe the sampling and analytical procedures that were utilized 

for this study. 

3.1 Exhaust Emissions

 Emissions of THC, NMHC, CO, NOx, and CO2 were quantified in a manner consistent 

with EPA protocols for light-duty emissions testing as given in the Code of Federal Regulations, 

Title 40, Part 86, Subpart B. Emissions of THC, CO, NOx, and CO2 were sampled using 

proportional exhaust gas samples collected in Tedlar bags. Total hydrocarbon emissions were 

measured using a flame ionization detector, while CO and CO2 were determined using nondispersive infra-red instruments. Emissions of NOx were measured using a chemiluminescent 

instrument. Wet absorption techniques were employed to collect alcohol and aldehyde VOC. 

Alcohol analysis was performed with gas chromatography – flame ionization detection and 

aldehydes were measured by high performance liquid chromatography with ultra-violet 

absorbance detection. Values for NMHC were determined by subtracting methane (corrected for 

FID response factor) from THC.

3.2 Evaporative Emissions 

At the beginning and end of each Hot Soak Loss (HSL) segment, total hydrocarbon 

evaporative emissions were measured according to methods described in 40 CFR 86.138-90. In 

addition to total hydrocarbon emissions, bag samples were taken at the beginning and end of 

each of the evaporative emission test segments to permit hydrocarbon speciation analyses to be 

performed, and to collect sufficient sample for alcohol analyses (when an alcohol fuel blend was 

used during testing). Because approximately two minutes were required to adequately fill a bag 

for analysis, sampling was initiated one minute before the start point and continued until one 

minute after the stop point. 

3.3 Hydrocarbon Speciation Procedures for VOC Determinations 

 The analytical procedures used for conducting hydrocarbon speciation (C2 to C12

hydrocarbons, aldehydes and ketones, and alcohols) are similar to the CRC Auto/Oil Phase II 

methods. With these methods, exhaust and evaporative emissions samples are analyzed for the 

presence of more than 200 different exhaust species. Four GC procedures and one HPCL 

procedure are used to identify and quantify compounds. In general, all emission “sample” bags 
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 6 of 9 

Report 03-05383 

were analyzed before the “background” bags so that reactive exhaust compounds can be 

analyzed as quickly as possible. A brief description of these procedures is given below. 

3.3.1 C2-C4 Species 

The first GC procedure uses a 15 m x 0.53 mm I.D. DB-WAX (1Fm film) pre-column 

and a 50 m x 0.53 mm I.D. (10 Fm film) Alumina PLOT/KCI (Carbopack®) column to permit 

the separation and determination of exhaust concentrations of C1-C4 individual hydrocarbon 

species, including ethane; ethylene; acetylene; propane; propylene; propadiene; butane; trans-2-

butene; 1-butyne; and cis-2-butene. Bag samples were analyzed using a gas chromatograph 

equipped with a FID. The gas chromatograph system utilizes two analytical columns. The 

carrier gas is helium. An external multiple component standard in zero air is used to quantify the 

results. Detection limits for the procedure are on the order of 5 ppbC in dilute exhaust for all 

compounds.

3.3.2. C5-C12 Species 

 The second GC procedure uses a 60 m x 0.32 mm I.D. (10 Fm film) DB-1 column to 

provide separation and exhaust concentrations for more than 100 C5-C12 individual HC 

compounds. Bag samples are analyzed using a gas chromatograph equipped with a FID. The 

GC system utilizes a FID, a pneumatically operated and electrically controlled valve, and an 

analytical column. The carrier gas is helium. An external multiple component standard in zero 

air is used to quantify the results. Detection limits for the procedure are on the order of 10 ppbC 

in dilute exhaust for all compounds. 

3.3.3 Benzene and Toluene 

The third GC procedure uses a separate system configured similarly to the second GC 

method to determine individual concentrations of benzene and toluene according to CRC 

Auto/Oil Phase II Protocols. The third GC utilizes a 30 m x 0.25 mm I.D. (0.25 Fm film) DB-5 

column instead of a DB-1 column. 

3.3.4 Aldehydes and Ketones 

A HPLC with a Zorbax® ODS column was utilized for the analysis of aldehydes and 

ketones. Samples are collected by bubbling dilute exhaust at a nominal flow rate of 4 L/min 

through chilled glass impingers containing an acetonitrile solution of 2,4-DNPH and perchloric 

acid. For analysis, a portion of the acetonitrile solution is injected into a liquid chromatograph 

equipped with a UV detector. External standards of the aldehyde and ketone DNPH derivatives 

are used to quantify the results. The aldehydes and ketones that were measured include: 

formaldehyde, acetaldehyde, acrolein, acetone, propionaldehyde, crotonaldehyde, nbutyraldehyde, benzaldehyde, isovaleraldehyde, valeraldehyde, o-tolualdehyde, m+ptolualdehyde (not resolved from each other during normal operating conditions, and so reported 

together), dimethylbenzaldehyde, and hexanaldehyde. Detection limits for this procedure are on 

the order of 0.005 ppm aldehyde or ketone in dilute exhaust. 
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 7 of 9 

Report 03-05383 

3.3.5 Alcohols 

 The fourth GC is utilized to analyze alcohols. The collection of ethanol in exhaust and 

from the SHED was accomplished by bubbling the sample through glass impingers. Each 

impinger contains 25 mL of deionized water maintained at ice-bath temperature. Exhaust 

samples were collected continuously during test cycles at a nominal flow rate of 4 L/min through 

a Teflon sample line held at 102°C (215°F). Evaporative emissions were sampled from Tedlar 

bags using a system configured similarly to that used for exhaust emissions (except an unheated 

sample line is used to transfer the sample to impingers). 

 For analysis, a portion of the liquid sample is injected into a GC equipped with a FID and 

an analytical column. The analytical column is a 3 m x 0.53 mm I.D. capillary column with a 1-

μm film of DB-WAX as the stationary phase. The GC carrier gas is helium with a column head 

pressure of approximately 4 psi. External standards prepared in deionized water are used to 

quantify the results. Detection limits for this procedure are on the order of 0.06 ppm in dilute 

exhaust. 

4.0 RESULTS 

 Regulated emissions results for the Ford F-150 and the Toyota Camry are presented in 

Tables 4 through 7. Results are presented for the normal and malfunction modes by fuel type. 

During the Winter 2005 season, for the Ford operating in normal mode on the Chicago fuel, a 

second exhaust emissions test was performed because the CO result appeared unexpectedly high. 

The CO result remained relatively high, however. 

TABLE 4. REGULATED AND HOT SOAK EMISSIONS 

FOR FORD F-150, SUMMER 2002 

Houston Fuel Atlanta Fuel Chicago Fuel 

Parameter Units 

Normal Malfunction Normal Malfunction Normal Malfunction 

HC g/mi 0.397 2.19 0.469 2.45 0.430 2.27

NMHC g/mi 0.296 2.09 0.366 2.35 0.281 2.17

CO g/mi 2.19 15.6 1.88 16.89 1.66 15.2

NOx g/mi 0.989 2.11 1.05 2.13 1.40 2.07

Fuel Economy mi/gal 14.9 15.0 15.3 15.1 14.5 14.8

Hot Soak HC g 0.00 2.60 0.07 2.18 0.00 1.95
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 8 of 9 

Report 03-05383 

TABLE 5. REGULATED AND HOT SOAK EMISSIONS 

FOR FORD F-150, WINTER 2005 

Houston Fuel Atlanta Fuel Chicago Fuel 

Parameter Units 

Normal Malfunction Normal Malfunction Normal Normal Malfunction

HC g/mi 0.570 2.39 0.588 2.63 0.795 0.794 2.41

NMHC g/mi 0.464 2.23 0.487 2.54 0.637 0.637 2.31

CO g/mi 2.95 16.3 2.90 17.2 9.32 8.19 16.4

NOx g/mi 1.04 2.02 1.08 2.20 1.12 1.26 2.27

Fuel Economy mi/gal 13.6 14.1 14.2 14.0 13.4 13.5 13.8

Hot Soak HC g 0.21 6.83 0.28 13.9 0.42 N/C* 21.0

*N/C = not conducted 

TABLE 6. REGULATED AND HOT SOAK EMISSIONS 

FOR TOYOTA CAMRY, SUMMER 2002 

Houston Fuel Atlanta Fuel Chicago Fuel 

Parameter Units 

Normal Malfunction Normal Malfunction Normal Malfunction 

HC g/mi 0.227 4.05 0.288 3.89 0.244 4.21

NMHC g/mi 0.186 3.55 0.249 3.49 0.208 3.71

CO g/mi 3.18 64.4 2.64 59.5 2.61 60.4

NOx g/mi 0.525 2.56 0.581 2.64 0.516 2.44

Fuel Economy mi/gal 26.8 19.5 22.2 19.9 22.8 19.7

Hot Soak HC g 0.09 0.77 0.01 0.62 0.05 2.16

TABLE 7. REGULATED AND HOT SOAK EMISSIONS FOR TOYOTA CAMRY 

FOR TOYOTA CAMRY, WINTER 2005 

Houston Fuel Atlanta Fuel Chicago Fuel 

Parameter Units 

Normal Malfunction Normal Malfunction Normal Malfunction 

HC g/mi 0.268 3.99 0.384 4.03 0.388 3.75

NMHC g/mi 0.199 3.47 0.346 3.58 0.276 3.29

CO g/mi 2.72 64.5 3.78 63.0 3.89 55.0

NOx g/mi 1.15 1.98 0.877 2.46 0.873 2.76

Fuel Economy mi/gal 24.3 19.8 23.2 20.1 21.9 19.3

Hot Soak HC g 0.02 8.02 0.00 4.84 0.11 8.66
Dr. Barbara Zielinska 

Desert Research Institute 

July 29, 2005 

Page 9 of 9 

Report 03-05383 

 The speciated hydrocarbon results are presented in Appendix A for the Ford F-150 and in 

Appendix B for the Toyota Camry. 

5.0 SUMMARY 

 This report describes a project in which SwRI provided logistic support to DRI for onroad and garage exposure studies, and for laboratory exhaust and evaporative emissions testing. 

Hot Soak evaporative and FTP tailpipe vehicle emissions were measured for two vehicles 

operating on six fuels, to include operation in normal and in malfunction conditions. 

6.0 CLOSURE 

 It has been a pleasure to perform this project for DRI. If you have any questions of a 

technical nature, please contact Patrick Merritt by telephone at (210) 522-5422, by fax at (210) 

522-3950, or by e-mail at pmerritt@swri.org. 

Prepared by: Reviewed by: 

 

Patrick M. Merritt Lawrence R. Smith 

Senior Research Scientist Manager, Light-Duty and Unregulated Emissions 

Department of Engine and Emissions Research Department of Engine and Emissions Research 

Approved by: 

Jeff J. White 

Director of Development 

Department of Engine and Emissions Research 

c: Sherry Twilligear, SwRI Contracts 
APPENDIX A 

HYDROCARBON SPECIATION DATA 

FOR FORD F-150

TABLE OF CONTENTS FOR APPENDIX A 

FTP Composite Results, Winter 2005, pp. A1-A5 

SHED Test Results, Winter 2005, pp. A6-A10 

FTP Composite Results, Summer 2002, pp. A11-A15 

SHED Test Results, Summer 2002, pp. A16-A20 

A blank space in the tables indicates that the compound was not detected during analysis. A 

“Trace” value indicates that the compound was detected, but computations of mass or mass rate 

resulted in a value of less than 0.05. An “*” in the table indicates a malfunction of the analytical 

equipment during sample analysis and that no data are available. 
HYDROCARBON SPECIATION DATA: 

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

METHANE 101.9 91.2 100.3 95.3 147.5 92.8

ETHANE 29.9 31.9 29.8 34.2 34.8 34.4

ETHYLENE 40.9 261.7 37.4 269.6 78.7 276.7

PROPANE 3.3 2.5 2.5 2.5 3.1 3.3

PROPYLENE 9.3 143.2 11.2 158.2 13.6 145.0

ACETYLENE 6.9 139.3 3.7 147.6 8.0 139.5

PROPADIENE 0.2 9.6 0.3 8.6 0.2 7.7

BUTANE 35.6 39.9 61.0 61.7 96.9 81.1

TRANS-2-BUTENE 1.4 10.9 1.6 11.7 3.6 11.7

1-BUTENE 2.0 25.5 2.0 25.6 3.9 24.7

2-METHYLPROPENE (ISOBUTYLENE) 11.6 104.1 3.8 57.4 5.3 44.6

2,2-DIMETHYLPROPANE (NEOPENTANE) 57.6 87.0 60.6 88.6 78.2 104.7

PROPYNE 0.3 11.6 0.3 10.6 0.2 1.1

1,3-BUTADIENE 0.7 32.9 1.0 33.7 1.1 39.1

2-METHYLPROPANE (ISOBUTANE) 5.0 5.8 5.4 5.5 6.1 5.4

1-BUTYNE

METHANOL

CIS-2-BUTENE 0.3 8.3 0.6 8.8 3.3 8.6

3-METHYL-1-BUTENE

ETHANOL 21.1 120.3

2-METHYLBUTANE (ISOPENTANE) 1.0 10.8

2-BUTYNE

1-PENTENE 0.9 8.9 0.5 3.2 1.3 2.0

2-METHYL-1-BUTENE 1.0 18.5 1.2 12.2 2.2 16.2

PENTANE 24.4 43.5 32.5 54.8 32.2 47.0

UNIDENTIFIED C5 OLEFINS Trace 1.7 Trace 0.5 0.3

2-METHYL-1,3-BUTADIENE 0.1 10.8 0.3 10.0 0.3 12.3

TRANS-2-PENTENE 1.4 11.5 1.3 8.1 3.2 14.4

3,3-DIMETHYL-1-BUTENE 0.4 0.1 0.5 Trace 0.5

CIS-2-PENTENE 0.7 6.4 0.6 4.7 1.8 8.5

2-METHYL-2-BUTENE 0.7 13.5 1.2 11.1 3.1 21.7

TERT-BUTANOL

CYCLOPENTADIENE 2.4 2.4 2.2

2,2-DIMETHYLBUTANE 6.3 10.6 4.9 8.0 2.8 5.4

CYCLOPENTENE 0.4 4.3 0.4 3.2 1.6 6.0

4-METHYL-1-PENTENE 0.3 3.5 1.0 2.3 0.5 3.7

3-METHYL-1-PENTENE

CYCLOPENTANE 1.4 5.8 1.3 4.4 2.1 4.5

2,3-DIMETHYLBUTANE 4.8 13.3 6.2 12.7 6.0 11.5

MTBE 7.5 83.7 0.1 1.7 0.2 2.4

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 30.0 64.8 18.5 41.6 19.8 40.8

4-METHYL-TRANS-2-PENTENE 3.4 0.2 1.7 0.5 3.4

3-METHYLPENTANE 20.6 44.2 12.5 27.0 12.8 26.6

2-METHYL-1-PENTENE 0.3 3.4 0.4 2.8 0.5 4.0

1-HEXENE 0.3 3.4 0.4 2.8 0.5 4.0

HEXANE 18.3 43.6 11.5 26.4 9.6 21.9

UNIDENTIFIED C6 0.2 12.0 0.7 7.1 0.2 10.7

TRANS-3-HEXENE

CIS-3-HEXENE 0.4 2.6 0.3 1.4 0.6 3.3

DI-ISOPROPYL ETHER

TRANS-2-HEXENE 0.5 3.7 0.4 2.7 0.8 5.1

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE A-1
HYDROCARBON SPECIATION DATA: 

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 0.7 5.7 0.6 3.8 1.6 9.1

2-METHYL-2-PENTENE 0.4 3.4 0.4 2.7 0.9 5.5

3-METHYLCYCLOPENTENE Trace

CIS-2-HEXENE 0.2 2.0 0.2 1.0 0.5 2.7

ETBE

3-METHYL-CIS-2-PENTENE 0.4 3.2 0.4 2.1 1.1 5.8

2,2-DIMETHYLPENTANE, NOTE A 4.6 13.1 3.2 8.9 4.4 12.0

METHYLCYCLOPENTANE, NOTE A 4.5 12.8 3.1 8.7 4.3 11.8

2,4-DIMETHYLPENTANE 2.5 7.4 3.5 9.4 1.9 6.2

2,2,3-TRIMETHYLBUTANE 0.3 1.3 0.4 0.9 0.1 0.8

3,4-DIMETHYL-1-PENTENE 0.4 0.3 0.7

1-METHYLCYCLOPENTENE 1.0 5.6 1.0 4.7 1.2 7.6

BENZENE 6.5 46.5 10.6 81.3 14.8 80.5

3-METHYL-1-HEXENE 1.4 0.3 1.2

3,3-DIMETHYLPENTANE 2.1 3.9 1.4 2.3 0.9 0.5

CYCLOHEXANE 0.4 2.0 1.0 2.7 1.1 5.5

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 14.4 43.5 12.4 38.7 7.8 23.4

1,1-DIMETHYLCYCLOPENTANE 0.1 Trace 0.5 0.3 1.2

TERT-AMYL METHYL ETHER

CYCLOHEXENE 0.8 11.1 0.1 1.3 0.2 2.7

3-METHYLHEXANE 12.1 35.6 8.4 26.5 4.9 14.3

CIS-1,3-DIMETHYLCYCLOPENTANE 0.3 4.0 1.0 2.7 2.3 6.4

3-ETHYLPENTANE 1.2 3.3 1.4 5.6 1.5 7.9

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.9 1.7 1.1 3.4 0.6 5.7

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 3.8 15.4 21.7 57.4 6.7 17.9

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 1.0 0.2 1.6 0.5 3.9

HEPTANE 7.5 27.0 6.8 23.1 4.3 14.0

CIS-3-HEPTENE

UNIDENTIFIED C7 1.0 6.5 0.3 2.9 1.3 6.7

2-METHYL-2-HEXENE 0.5 1.3 0.5 2.9

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 0.2 1.4 0.1 1.2 0.3 2.1

3-ETHYL-CIS-2-PENTENE Trace

2,4,4-TRIMETHYL-1-PENTENE 0.2 1.7 0.3 1.5 0.4 2.5

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 0.1 1.1 1.0 0.2 1.5

METHYLCYCLOHEXANE 1.8 8.0 2.4 9.4 4.5 16.8

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 0.5 2.4 0.5 2.0 0.4 2.1

2,4,4-TRIMETHYL-2-PENTENE 0.1 Trace 0.2 0.1 Trace 0.3

2,2,3-TRIMETHYLPENTANE 0.5 2.6 2.2 9.4 1.1 6.8

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 1.4 9.1 2.8 11.9 1.0 6.2

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.5 2.3 0.3 2.3 0.5 2.1

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 0.1 0.8 0.2 0.7 0.3 2.0

PAGE A-2
HYDROCARBON SPECIATION DATA: 

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 1.0 4.1 4.8 16.9 2.5 10.0

2,3,3-TRIMETHYLPENTANE 0.9 2.0 2.6 11.4 2.9 9.0

TOLUENE 8.4 85.5 20.7 189.2 14.7 114.8

2,3-DIMETHYLHEXANE 1.2 3.6 1.7 11.9 1.1 7.9

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 0.2 0.1 1.7

3,4-DIMETHYLHEXANE, NOTE B 1.9 1.6 0.8

4-METHYLHEPTANE 3.2 13.2 3.1 9.9 1.8 7.6

3-METHYLHEPTANE 3.3 12.9 3.1 11.3 1.8 6.6

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE 0.4 2.7 0.2 2.6 0.7 3.6

2,2,5-TRIMETHYLHEXANE 0.3 1.4 0.8 3.6 1.5 5.6

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 0.3 2.2 0.2 2.0 0.5 2.1

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.1 1.0 0.1 0.7 0.1 1.3

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE 0.1 1.6 0.2 1.0 0.2 2.0

1-OCTENE

TRANS-4-OCTENE 0.3 0.1 1.9 0.9

OCTANE 1.6 7.7 1.7 7.9 1.2 4.5

UNIDENTIFIED C8 1.2 3.4 0.3 4.2 0.9 4.4

TRANS-2-OCTENE

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE Trace 0.7 0.1 0.5 0.1 0.6

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE Trace

2,3,5-TRIMETHYLHEXANE Trace 0.4 0.1 0.8 0.3 1.0

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 0.1 1.0 0.1 0.9 0.1 1.0

2,4-DIMETHYLHEPTANE 0.2 1.0 0.1 1.0 0.2 0.7

4,4-DIMETHYLHEPTANE 0.1 0.5 0.1 0.3 0.1 0.5

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE

2,6-DIMETHYLHEPTANE, NOTE D 0.3 1.7 0.3 2.1 0.7 1.7

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.2 1.2 0.2 1.2 0.2 1.0

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E 0.2 1.2 0.2 1.2 0.2 1.0

ETHYLBENZENE 3.1 33.3 4.4 43.7 3.3 22.1

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 9.6 110.1 12.8 122.9 9.6 65.2

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 1.0 6.5 0.8 5.0 0.6 3.8

3-METHYLOCTANE 0.7 4.2 0.6 3.4 0.4 2.3

STYRENE 0.3 15.5 0.8 19.4 0.3 11.2

PAGE A-3
HYDROCARBON SPECIATION DATA: 

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 3.5 42.6 5.0 48.1 3.3 23.5

1-NONENE 0.1 1.1 0.2 1.4 0.1 1.9

TRANS-3-NONENE

CIS-3-NONENE

NONANE 0.3 3.0 0.4 2.9 0.4 2.6

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) 0.5 0.1 0.6 Trace 0.5

2,2-DIMETHYLOCTANE Trace 0.6 0.1 0.5 0.1 0.9

2,4-DIMETHYLOCTANE 0.1 0.7 0.1 0.3 0.1 1.0

n-PROPYLBENZENE 0.5 9.8 0.8 12.0 0.6 6.7

1-METHYL-3-ETHYLBENZENE 2.3 52.6 3.3 47.0 2.6 31.8

1-METHYL-4-ETHYLBENZENE 0.9 7.9 1.5 21.5 0.8 10.6

1,3,5-TRIMETHYLBENZENE 1.1 19.4 1.7 19.6 0.8 13.2

1-METHYL-2-ETHYLBENZENE 0.8 15.7 1.5 19.8 0.7 10.4

1,2,4-TRIMETHYLBENZENE 1.6 70.5 5.4 77.5 2.5 47.8

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F 0.1 1.3 0.3 1.4 Trace 2.4

ISOBUTYLBENZENE, NOTE F 0.1 1.2 0.3 1.3 Trace 2.3

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene) 0.8 0.1 1.4 0.2 0.9

1-METHYL-3-ISOPROPYLBENZENE Trace

1,2,3-TRIMETHYLBENZENE 0.4 14.2 1.2 18.4 0.4 11.3

1-METHYL-4-ISOPROPYLBENZENE 0.9 0.1 1.0 0.2 0.9

INDAN

1-METHYL-2-ISOPROPYLBENZENE 6.6 0.4 5.4 0.1 7.6

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE 0.1 0.5 Trace 0.7

1-METHYL-3-N-PROPYLBENZENE 0.1 5.7 0.2 10.3 0.2 6.8

1-METHYL-4-N-PROPYLBENZENE, NOTE G 0.4 14.4 0.8 16.8 0.5 13.4

1,2 DIETHYLBENZENE 0.2 1.0 1.0

1-METHYL-2-N-PROPYLBENZENE 2.3 0.1 4.0 2.4

1,4-DIMETHYL-2-ETHYLBENZENE 5.8 0.7 8.5 6.5

1,3-DIMETHYL-4-ETHYLBENZENE 4.4 0.7 8.8 0.4 5.6

1,2-DIMETHYL-4-ETHYLBENZENE 0.8 1.9 1.7 0.9 1.8

1,3-DIMETHYL-2-ETHYLBENZENE 1.9 1.4 0.9

UNDECANE Trace 3.7 0.2 4.5 0.1 2.8

1,2-DIMETHYL-3-ETHYLBENZENE

1,2,4,5-TETRAMETHYLBENZENE 2.7 4.5 5.6

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE 0.3 7.6 0.7 10.4 0.5 2.2

TERT-1-BUT-2-METHYLBENZENE 2.4 Trace 3.6 Trace 4.9

1,2,3,4-TETRAMETHYLBENZENE 4.3 4.8 Trace 4.1

N-PENT-BENZENE 2.0 2.2 2.0

TERT-1-BUT-3,5-DIMETHYLBENZENE

TERT-1-BUTYL-4-ETHYLBENZENE 5.0 3.3 6.2

NAPHTHALENE

DODECANE Trace 2.4 Trace 4.1 0.1 1.0

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE A-4
HYDROCARBON SPECIATION DATA: 

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 3.7 76.1 3.6 92.4 5.2 94.8

FORMALDEHYDE 9.3 56.5 5.4 38.7 6.6 34.1

ACETALDEHYDE 2.2 17.3 2.1 16.9 4.9 32.0

ACROLEIN 0.1 4.6 0.2 6.6 0.2 8.2

ACETONE 0.8 7.5 0.3 5.9 0.8 4.4

PROPIONALDEHYDE Trace 8.2 0.3 5.1 0.3 4.3

CROTONALDEHYDE 0.3 5.4 0.2 4.9 0.2 5.3

ISOBUTYRALDEHYDE, NOTE H 0.1 1.2 Trace 1.0 0.2 1.2

METHYL ETHYL KETONE, NOTE H 0.1 1.2 Trace 1.0 0.2 1.2

BENZALDEHYDE 0.5 10.2 0.6 13.8 0.1 7.8

ISOVALERALDEHYDE 0.2 1.2 0.9 Trace 1.5

VALERALDEHYDE 1.1 0.8 0.8

O-TOLUALDEHYDE 4.0 0.1 4.0 Trace 2.3

M/P-TOLUALDEHYDE 0.2 13.0 0.4 13.6 0.1 8.2

HEXANALDEHYDE 0.2 Trace 0.5 Trace 1.3

DIMETHYLBENZALDEHYDE 0.1 4.1 Trace 5.2 0.1 3.7

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

H - Isobutyraldehyde and methyl ethyl ketone co-elute. LC peak area split equally between the two compounds.

PAGE A-5
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

METHANE -- -- -- -- -- --

ETHANE 1.5 3.3 0.9 4.6 5.6 6.7

ETHYLENE 0.3 0.4 0.3 0.6 0.2

PROPANE 1.1 40.5 1.5 82.6 57.1 145.8

PROPYLENE 0.2 5.7 0.6 15.6 7.4 22.5

ACETYLENE

PROPADIENE

BUTANE 53.8 2311.0 106.2 3837.5 494.4 4161.4

TRANS-2-BUTENE 2.1 50.2 2.8 117.8 7.7 211.3

1-BUTENE 0.7 27.8 0.9 61.2 6.1 115.1

2-METHYLPROPENE (ISOBUTYLENE) 1.2 33.2 1.3 70.8 7.3 134.3

2,2-DIMETHYLPROPANE (NEOPENTANE) 43.9 1183.5 61.9 2925.1 151.9 4437.8

PROPYNE

1,3-BUTADIENE 1.2 2.4 7.9

2-METHYLPROPANE (ISOBUTANE) 5.7 199.7 10.4 481.5 68.0 792.8

1-BUTYNE

METHANOL

CIS-2-BUTENE 38.9 96.4 5.7 162.6

3-METHYL-1-BUTENE

ETHANOL 227.0 3370.0

2-METHYLBUTANE (ISOPENTANE)

2-BUTYNE

1-PENTENE 56.0 1.0 104.5 6.4 234.0

2-METHYL-1-BUTENE 125.1 2.7 238.4 14.1 500.5

PENTANE 21.0 506.3 25.7 1109.7 65.4 1711.8

UNIDENTIFIED C5 OLEFINS

2-METHYL-1,3-BUTADIENE 1.6 4.9 7.9 35.9

TRANS-2-PENTENE 5.2 129.2 2.4 245.5 5.4 530.8

3,3-DIMETHYL-1-BUTENE 2.6 14.2

CIS-2-PENTENE 2.9 73.9 1.1 134.6 2.1 291.7

2-METHYL-2-BUTENE 9.8 220.7 6.4 414.3 30.7 883.9

TERT-BUTANOL

CYCLOPENTADIENE 1.5 4.3 4.7 15.3

2,2-DIMETHYLBUTANE 2.6 27.8 1.8 59.8 2.8 96.4

CYCLOPENTENE 24.6 44.7 4.0 96.2

4-METHYL-1-PENTENE 0.4 12.6 2.4 23.4 1.2 49.6

3-METHYL-1-PENTENE

CYCLOPENTANE 28.1 55.3 4.2 96.2

2,3-DIMETHYLBUTANE 5.5 58.6 3.3 118.7 6.9 200.6

MTBE 170.1 46.9 1.1 78.2

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 30.1 219.1 15.5 389.8 25.9 673.2

4-METHYL-TRANS-2-PENTENE 20.0 2.0 44.3

3-METHYLPENTANE 9.1 118.0 7.2 222.2 15.1 384.3

2-METHYL-1-PENTENE 1.1 12.1 0.6 22.7 2.0 50.0

1-HEXENE 1.1 12.1 0.6 22.7 2.0 50.0

HEXANE 8.7 90.4 7.5 167.0 13.6 279.1

UNIDENTIFIED C6 0.7 6.7 1.0 5.8 13.7 28.3

TRANS-3-HEXENE

CIS-3-HEXENE 1.7 10.7 0.8 20.9 46.9

DI-ISOPROPYL ETHER

TRANS-2-HEXENE 14.3 1.4 30.0 3.5 66.6

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE A-6
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 4.2 29.1 1.7 51.9 4.8 116.1

2-METHYL-2-PENTENE 1.5 17.8 1.8 30.7 3.6 66.8

3-METHYLCYCLOPENTENE

CIS-2-HEXENE 1.0 9.1 16.0 1.7 36.3

ETBE

3-METHYL-CIS-2-PENTENE 2.0 18.7 1.0 34.2 2.1 77.1

2,2-DIMETHYLPENTANE, NOTE A 3.5 38.5 2.5 68.2 6.7 132.1

METHYLCYCLOPENTANE, NOTE A 3.4 37.6 2.5 66.8 6.5 129.4

2,4-DIMETHYLPENTANE 1.9 17.3 1.6 35.5 2.7 59.2

2,2,3-TRIMETHYLBUTANE 2.4 1.7 7.0

3,4-DIMETHYL-1-PENTENE 0.8 1.4 3.7

1-METHYLCYCLOPENTENE 1.8 17.5 1.9 34.0 83.1

BENZENE 6.7 27.2 7.3 65.6 0.2 133.8

3-METHYL-1-HEXENE 2.1 5.0

3,3-DIMETHYLPENTANE 4.0 1.6 3.8 5.2 3.0

CYCLOHEXANE 1.3 11.6 20.0 44.8

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 7.0 44.4 5.3 84.0 8.4 120.0

1,1-DIMETHYLCYCLOPENTANE 1.6 2.8 6.3

TERT-AMYL METHYL ETHER

CYCLOHEXENE 2.2 3.3 0.5 7.7

3-METHYLHEXANE 5.8 33.1 3.9 52.8 5.1 73.2

CIS-1,3-DIMETHYLCYCLOPENTANE 1.3 9.5 0.8 17.3 2.1 35.0

3-ETHYLPENTANE 1.2 10.4 0.9 24.4 2.0 43.4

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 1.3 7.8 0.6 15.0 1.6 28.8

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 2.7 21.4 4.0 59.6 4.0 65.7

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 0.5 4.0 0.4 7.3 0.9 15.8

HEPTANE 5.5 21.4 4.1 39.7 5.0 60.2

CIS-3-HEPTENE

UNIDENTIFIED C7 0.4 3.4 17.1 0.5 42.4

2-METHYL-2-HEXENE 18.4

3-METHYL-TRANS-3-HEXENE 1.6

TRANS-2-HEPTENE 0.2 2.3 0.2 3.0 0.5 5.5

3-ETHYL-CIS-2-PENTENE 3.1

2,4,4-TRIMETHYL-1-PENTENE 0.6 3.6 0.4 6.3 1.0 14.1

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 1.5 0.2 2.8 0.4 6.0

METHYLCYCLOHEXANE 2.7 18.1 2.2 32.8 4.8 66.4

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 1.3 0.2 2.5 0.3 5.1

2,4,4-TRIMETHYL-2-PENTENE 0.9 0.2

2,2,3-TRIMETHYLPENTANE 1.6 3.7 0.9 8.1 1.7 23.6

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 1.8 11.0 0.5 8.9 2.0 13.5

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.2 3.4 0.4 6.3

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 1.7 0.2 5.2

PAGE A-7
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 2.4 11.2 1.6 17.7 2.4 29.2

2,3,3-TRIMETHYLPENTANE 1.0 7.8 1.3 12.9 22.4

TOLUENE 12.8 37.6 15.1 82.5 125.9

2,3-DIMETHYLHEXANE 4.1 7.8 15.9

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 1.1 0.2 3.8

3,4-DIMETHYLHEXANE, NOTE B

4-METHYLHEPTANE 1.6 6.9 1.3 10.2 1.6 15.8

3-METHYLHEPTANE 1.7 7.0 1.3 11.4 1.9 11.6

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE 0.3 0.8 7.1

2,2,5-TRIMETHYLHEXANE 0.6 3.3 0.5 4.2 0.8 7.8

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 0.6 1.5 0.1 1.2 0.2 1.8

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.2

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE 0.4 0.6 0.2 0.1 3.0

1-OCTENE

TRANS-4-OCTENE 0.6 1.7

OCTANE 1.2 2.8 0.9 3.4 1.2 7.0

UNIDENTIFIED C8 6.0 18.1 0.3 9.8

TRANS-2-OCTENE 0.4 0.7 0.8 2.6

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE 0.9

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.3 0.3 0.9

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 0.3 0.3 0.9

2,4-DIMETHYLHEPTANE 0.2 0.5 0.1 0.1 0.3

4,4-DIMETHYLHEPTANE 0.1 0.6

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE

2,6-DIMETHYLHEPTANE, NOTE D 0.4 1.0 0.2 1.5 0.3 3.3

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.1 0.3 0.4 0.1 0.9

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E 0.1 0.3 0.4 0.1 0.9

ETHYLBENZENE 3.0 5.2 2.8 9.4 3.3 10.8

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 7.4 12.6 6.0 25.7 7.6 31.8

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 1.4 0.1 2.5

3-METHYLOCTANE 1.1 1.6

STYRENE

PAGE A-8
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 1.5 2.6 0.9 8.6 1.3 10.0

1-NONENE 0.3 0.4 0.1 0.4

TRANS-3-NONENE

CIS-3-NONENE

NONANE 0.1 0.5

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) 0.1 0.2

2,2-DIMETHYLOCTANE 0.2

2,4-DIMETHYLOCTANE 0.1

n-PROPYLBENZENE 0.1 0.2

1-METHYL-3-ETHYLBENZENE

1-METHYL-4-ETHYLBENZENE

1,3,5-TRIMETHYLBENZENE

1-METHYL-2-ETHYLBENZENE 0.3

1,2,4-TRIMETHYLBENZENE 2.0

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F

ISOBUTYLBENZENE, NOTE F

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene)

1-METHYL-3-ISOPROPYLBENZENE 0.5

1,2,3-TRIMETHYLBENZENE 0.3 0.3

1-METHYL-4-ISOPROPYLBENZENE

INDAN

1-METHYL-2-ISOPROPYLBENZENE

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE

1-METHYL-3-N-PROPYLBENZENE

1-METHYL-4-N-PROPYLBENZENE, NOTE G

1,2 DIETHYLBENZENE

1-METHYL-2-N-PROPYLBENZENE

1,4-DIMETHYL-2-ETHYLBENZENE

1,3-DIMETHYL-4-ETHYLBENZENE

1,2-DIMETHYL-4-ETHYLBENZENE

1,3-DIMETHYL-2-ETHYLBENZENE

UNDECANE

1,2-DIMETHYL-3-ETHYLBENZENE

1,2,4,5-TETRAMETHYLBENZENE

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE

TERT-1-BUT-2-METHYLBENZENE

1,2,3,4-TETRAMETHYLBENZENE

N-PENT-BENZENE

TERT-1-BUT-3,5-DIMETHYLBENZENE

TERT-1-BUTYL-4-ETHYLBENZENE

NAPHTHALENE

DODECANE 0.1

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE A-9
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

F-HOU-N F-HOU-MF F-ATL-N F-ATL-MF F-CHI-N F-CHI-MF

COMPOUND 3/16/2005 3/17/2005 3/23/2005 3/24/2005 3/28/2005 3/29/2005

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 0.2 1.6 2.2 1.1 8.4

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

PAGE A-10
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

METHANE 97.4 100.8 101.5 104.5 94.3 95.0

ETHANE 32.7 37.0 27.0 35.9 35.3 34.9

ETHYLENE 27.7 245.4 30.1 255.5 25.0 232.7

PROPANE 3.8 3.6 4.1 3.8 2.9 6.4

PROPYLENE 7.2 108.8 12.2 132.7 7.4 124.7

ACETYLENE 3.4 121.1 5.3 102.1 1.9 70.1

PROPADIENE

BUTANE 3.8 9.1 7.5 12.6 3.2 4.3

TRANS-2-BUTENE 1.0 7.3 2.0 6.6 5.2 17.6

1-BUTENE 2.3 19.2 1.6 18.6 1.2

2-METHYLPROPENE (ISOBUTYLENE) 8.8 100.9 4.2 60.4 3.4 64.4

2,2-DIMETHYLPROPANE (NEOPENTANE) 0.4 2.0 0.6 2.0 0.2 1.0

PROPYNE

1,3-BUTADIENE 1.5 37.6 1.2 48.9 0.3 32.9

2-METHYLPROPANE (ISOBUTANE) 0.2 8.6 3.8 9.3 0.2 6.9

1-BUTYNE

METHANOL

CIS-2-BUTENE 1.3 6.0 9.1 0.4 6.3

3-METHYL-1-BUTENE

ETHANOL 12.1 182.6

2-METHYLBUTANE (ISOPENTANE) 23.1 49.3 13.7 59.4 29.6 46.9

2-BUTYNE

1-PENTENE 0.4 7.8 0.8 1.2 0.4 6.8

2-METHYL-1-BUTENE 0.7 13.6 0.6 11.2 0.5 12.5

PENTANE 10.9 27.6 12.6 33.5 4.3 10.9

UNIDENTIFIED C5 OLEFINS 0.1 0.5 2.0 0.7 12.3

2-METHYL-1,3-BUTADIENE 0.2 6.6 10.3 0.2 11.9

TRANS-2-PENTENE 0.8 10.9 0.4 8.2 0.7 7.6

3,3-DIMETHYL-1-BUTENE 0.4 0.7 0.4 Trace 1.0

CIS-2-PENTENE 0.4 6.2 Trace 4.6 2.4 4.5

2-METHYL-2-BUTENE 1.1 14.9 1.1 12.1 1.3 16.8

TERT-BUTANOL

CYCLOPENTADIENE 0.1 2.8 8.4 0.1 7.4

2,2-DIMETHYLBUTANE 1.8 4.6 2.1 6.2 2.6 7.0

CYCLOPENTENE 0.3 4.0 0.3 2.9 0.2 3.4

4-METHYL-1-PENTENE 0.1 2.0 0.2 2.0 0.1 2.8

3-METHYL-1-PENTENE

CYCLOPENTANE 0.9 3.2 0.6 3.4 0.7 2.7

2,3-DIMETHYLBUTANE 3.6 11.1 2.3 9.2 5.6 17.0

MTBE 0.9 41.9

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 11.7 39.4 7.9 31.2 7.8 26.5

4-METHYL-TRANS-2-PENTENE

3-METHYLPENTANE 8.9 32.2 5.3 20.9 5.7 20.6

2-METHYL-1-PENTENE 0.1 2.5 0.1 2.5 0.1 2.0

1-HEXENE 0.2 2.8 0.1 2.5 0.1 2.0

HEXANE 8.7 31.2 5.2 19.3 4.6 14.4

UNIDENTIFIED C6 0.1 6.2 2.0 7.3 0.5 9.5

TRANS-3-HEXENE

CIS-3-HEXENE 0.1 1.6 0.1 1.0 0.1 0.9

DI-ISOPROPYL ETHER

TRANS-2-HEXENE 0.2 2.4 0.1 1.9 0.1 1.8

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE A-11
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 0.3 4.1 0.3 3.2 0.2 3.5

2-METHYL-2-PENTENE 0.2 2.9 0.1 2.1 0.1 2.5

3-METHYLCYCLOPENTENE

CIS-2-HEXENE 0.1 1.5 0.1 0.9 0.1 0.8

ETBE

3-METHYL-CIS-2-PENTENE 0.3 2.7 0.2 1.9 0.5 1.7

2,2-DIMETHYLPENTANE, NOTE A 1.6 7.3 1.4 7.2 2.1 9.5

METHYLCYCLOPENTANE, NOTE A 1.6 7.1 1.4 7.0 2.0 9.3

2,4-DIMETHYLPENTANE 1.7 5.5 1.6 5.6 3.5 11.7

2,2,3-TRIMETHYLBUTANE 0.3 3.0 Trace 0.4 0.2 0.4

3,4-DIMETHYL-1-PENTENE 0.3

1-METHYLCYCLOPENTENE 0.7 2.9 2.6 3.1

BENZENE 6.1 60.5 14.2 103.6 6.0 62.0

3-METHYL-1-HEXENE

3,3-DIMETHYLPENTANE 0.6 1.4 0.5 1.2 0.2 0.8

CYCLOHEXANE 0.4 2.8 0.8 5.3 1.9 10.7

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 6.4 20.9 6.0 22.9 10.2 32.8

1,1-DIMETHYLCYCLOPENTANE 1.3

TERT-AMYL METHYL ETHER

CYCLOHEXENE Trace 1.0 1.2 Trace 1.8

3-METHYLHEXANE 4.6 15.4 4.4 15.8 5.0 16.7

CIS-1,3-DIMETHYLCYCLOPENTANE 0.3 2.1 0.3 2.0 0.6 3.3

3-ETHYLPENTANE 0.3 2.6 0.4 1.2

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.4 2.1 0.4 2.0 0.8 3.2

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 10.4 26.2 13.9 41.0 15.5 43.2

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 0.1 1.7 1.1 0.2

HEPTANE 2.9 10.1 4.6 16.2 5.3 14.9

CIS-3-HEPTENE

UNIDENTIFIED C7 0.2 1.3 0.2 2.9 0.1 1.9

2-METHYL-2-HEXENE 1.3

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 0.1 1.1 Trace 0.7 Trace 0.7

3-ETHYL-CIS-2-PENTENE

2,4,4-TRIMETHYL-1-PENTENE 0.2 1.4 0.1 0.6 0.1 0.8

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 0.1 1.1 0.1 0.8 0.1 1.0

METHYLCYCLOHEXANE 0.9 4.5 1.4 7.6 2.1 11.1

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 0.2 0.8 0.3 1.1 0.4 1.4

2,4,4-TRIMETHYL-2-PENTENE

2,2,3-TRIMETHYLPENTANE 2.0 6.0 1.3 6.1 2.6 9.9

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 1.2 6.4 1.5 8.3 1.7 8.3

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.2 1.4 0.5 1.1 0.3 1.9

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 0.1 0.3 0.1 0.4 0.1 0.7

PAGE A-12
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 3.8 12.2 3.8 11.3 5.7 18.5

2,3,3-TRIMETHYLPENTANE 3.6 21.6 3.0 13.4 6.6 31.8

TOLUENE 6.5 87.5 27.1 232.4 8.0 102.1

2,3-DIMETHYLHEXANE 1.8 16.0 3.2 20.1 3.0 20.0

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 6.7 1.8 7.3

3,4-DIMETHYLHEXANE, NOTE B 0.1 0.1 1.6 1.1

4-METHYLHEPTANE 2.2 1.1 0.2 1.5 2.8 9.8

3-METHYLHEPTANE 2.2 7.7 1.8 7.8 2.3 8.8

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE 0.1

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE Trace 1.8 0.2 1.7 0.4 2.0

2,2,5-TRIMETHYLHEXANE 1.0 3.8 1.2 5.4 2.7 10.6

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 0.2 1.9 0.1 2.5 0.2 2.0

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.1 0.8 Trace 0.8 Trace 0.6

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE Trace 1.0 0.1 0.8 0.1 0.7

1-OCTENE

TRANS-4-OCTENE

OCTANE 1.1 4.4 1.6 6.5 1.7 6.7

UNIDENTIFIED C8 0.2 3.6 0.3 1.2 4.9 1.1

TRANS-2-OCTENE 0.1 1.2 0.1 0.7 Trace 0.5

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE 0.1 0.7 Trace 0.3 0.3

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.1 0.7 0.1 1.0 0.3 1.9

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 0.1 0.7 0.1 0.6 Trace 0.7

2,4-DIMETHYLHEPTANE 0.1 0.3 0.2 0.9 2.6 1.0

4,4-DIMETHYLHEPTANE Trace 1.2 0.2 0.1 0.2

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE

2,6-DIMETHYLHEPTANE, NOTE D 0.4 0.6 0.2 1.6 0.5 2.2

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.4 1.6 0.6 2.1 0.6 2.7

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E

ETHYLBENZENE 2.6 22.1 5.2 37.8 1.9 17.8

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 6.9 61.5 18.0 120.0 5.7 57.6

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 0.8 5.4 1.2 6.8 0.8 6.4

3-METHYLOCTANE 0.6 3.0 0.7 3.3 0.6 4.9

STYRENE 0.4 11.8 1.4 20.6 0.3 12.6

PAGE A-13
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 2.9 27.8 7.6 48.6 2.4 27.1

1-NONENE 0.1 2.3 0.2 3.1 0.3 3.8

TRANS-3-NONENE

CIS-3-NONENE

NONANE 0.5 3.1 1.2 3.6 0.8 4.7

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) 0.9 1.4 0.2 3.4 0.1 1.8

2,2-DIMETHYLOCTANE 0.1 0.4 0.1 Trace 0.2

2,4-DIMETHYLOCTANE Trace 0.3 0.1 0.3 Trace 0.3

n-PROPYLBENZENE 0.5 6.4 1.5 13.4 0.4 6.1

1-METHYL-3-ETHYLBENZENE 2.7 32.2 6.8 12.6 1.9 26.0

1-METHYL-4-ETHYLBENZENE 1.0 13.6 3.1 50.5 0.6 10.3

1,3,5-TRIMETHYLBENZENE 1.0 11.3 3.1 24.6 0.7 10.9

1-METHYL-2-ETHYLBENZENE 1.0 12.2 2.9 22.0 0.7 7.4

1,2,4-TRIMETHYLBENZENE 3.0 46.6 11.2 96.2 2.4 44.3

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F 0.1 1.1 0.3 2.3 0.1 1.1

ISOBUTYLBENZENE, NOTE F 0.1 1.0 0.3 2.1 0.1 1.0

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene)

1-METHYL-3-ISOPROPYLBENZENE 1.9

1,2,3-TRIMETHYLBENZENE 0.6 10.8 2.7 23.2 0.5 9.1

1-METHYL-4-ISOPROPYLBENZENE 0.4

INDAN

1-METHYL-2-ISOPROPYLBENZENE 1.8

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE Trace

1-METHYL-3-N-PROPYLBENZENE 0.1 5.5 1.0 7.7 0.3 7.4

1-METHYL-4-N-PROPYLBENZENE, NOTE G 0.5 13.0 1.9 21.8 0.3 11.7

1,2 DIETHYLBENZENE 0.1 0.2

1-METHYL-2-N-PROPYLBENZENE 0.2 2.0 0.1 2.9 0.2 2.1

1,4-DIMETHYL-2-ETHYLBENZENE 6.1

1,3-DIMETHYL-4-ETHYLBENZENE 0.4 16.3 1.1 18.9 0.3 5.3

1,2-DIMETHYL-4-ETHYLBENZENE 0.1 10.9 1.4 9.5 0.4 1.8

1,3-DIMETHYL-2-ETHYLBENZENE 3.9

UNDECANE Trace 2.3 0.5 6.3 0.1 2.3

1,2-DIMETHYL-3-ETHYLBENZENE 0.7

1,2,4,5-TETRAMETHYLBENZENE Trace 3.7 0.6 9.9 0.1 4.0

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE

TERT-1-BUT-2-METHYLBENZENE 5.7

1,2,3,4-TETRAMETHYLBENZENE

N-PENT-BENZENE 1.9

TERT-1-BUT-3,5-DIMETHYLBENZENE 0.1 0.8 0.2 2.6 17.1

TERT-1-BUTYL-4-ETHYLBENZENE

NAPHTHALENE 0.3

DODECANE 0.1 0.3 0.8 5.8 1.6

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE A-14
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

FORD F-150

FTP Composite, mg/mi

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 3.0 81.0 18.8 238.9 4.6 105.3

FORMALDEHYDE 9.4 94.0 14.6 75.5 12.7 85.2

ACETALDEHYDE 4.6 22.6 4.3 21.1 5.7 36.2

ACROLEIN 1.2 11.0 0.9 13.4 0.3 11.6

ACETONE 5.6 12.5 4.3 7.4 4.1 7.3

PROPIONALDEHYDE 0.5 8.9 0.5 4.7 0.5 6.5

CROTONALDEHYDE 2.0 9.9 0.8 6.4 1.1 7.6

ISOBUTYRALDEHYDE, NOTE H 0.8 3.0 0.6 2.2 0.4 2.1

METHYL ETHYL KETONE, NOTE H 0.8 3.0 0.6 2.2 0.4 2.1

BENZALDEHYDE 0.1 10.5 0.7 19.5 0.3 10.9

ISOVALERALDEHYDE 0.3 2.1 0.1 1.7 0.1 1.4

VALERALDEHYDE 0.2 1.1 0.3 1.6 0.2 0.3

O-TOLUALDEHYDE 0.3 4.0 5.6 3.2

M/P-TOLUALDEHYDE 0.3 11.8 0.8 18.9 0.3 11.0

HEXANALDEHYDE 0.3

DIMETHYLBENZALDEHYDE 0.4 4.0 0.2 6.9 0.4 3.9

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

H - Isobutyraldehyde and methyl ethyl ketone co-elute. LC peak area split equally between the two compounds.

PAGE A-15
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

METHANE

ETHANE 7.2 Trace 0.6

ETHYLENE 7.3 2.8

PROPANE 0.4 6.0 4.3

PROPYLENE 1.2 0.6

ACETYLENE

PROPADIENE

BUTANE 2.0 123.7 3.1 94.8 2.3 70.5

TRANS-2-BUTENE 3.8

1-BUTENE 2.8

2-METHYLPROPENE (ISOBUTYLENE) 3.4 2.1 6.0

2,2-DIMETHYLPROPANE (NEOPENTANE) 2.8 3.0 0.7

PROPYNE

1,3-BUTADIENE

2-METHYLPROPANE (ISOBUTANE) 0.6 22.7 25.6 1.1 16.2

1-BUTYNE

METHANOL

CIS-2-BUTENE

3-METHYL-1-BUTENE

ETHANOL 10.6 193.4

2-METHYLBUTANE (ISOPENTANE) 647.3 687.0 5.7 532.7

2-BUTYNE

1-PENTENE 1.8 27.2 25.3 23.4

2-METHYL-1-BUTENE 1.0 38.4 8.6 38.4 36.9

PENTANE 3.2 105.9 0.7 118.6 0.8 87.0

UNIDENTIFIED C5 OLEFINS

2-METHYL-1,3-BUTADIENE 1.4 2.7 1.1 2.5 1.1

TRANS-2-PENTENE 1.2 43.6 0.9 39.5 37.6

3,3-DIMETHYL-1-BUTENE 0.4 0.3 1.1 0.4

CIS-2-PENTENE 0.5 24.0 0.5 21.9 0.5 21.1

2-METHYL-2-BUTENE 2.4 59.0 2.4 56.4 2.2 54.2

TERT-BUTANOL

CYCLOPENTADIENE 0.8 0.5 0.5

2,2-DIMETHYLBUTANE 0.5 21.3 0.4 23.3 0.5 23.1

CYCLOPENTENE 7.6 0.3 7.5 0.4 6.7

4-METHYL-1-PENTENE 3.5 2.6 3.1

3-METHYL-1-PENTENE

CYCLOPENTANE 0.6 12.2 0.6 13.7 0.5 12.1

2,3-DIMETHYLBUTANE 1.7 47.4 1.3 48.3 1.6 51.3

MTBE 97.0

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 6.7 77.1 6.6 86.6 6.9 81.1

4-METHYL-TRANS-2-PENTENE

3-METHYLPENTANE 3.4 57.7 2.8 52.5 2.9 50.4

2-METHYL-1-PENTENE 0.2 2.9 0.3 2.8 0.4 2.5

1-HEXENE 0.2 2.9 0.3 2.8 0.4 2.5

HEXANE 3.6 40.1 2.9 35.7 3.4 33.1

UNIDENTIFIED C6 1.9 4.6 12.4 11.3

TRANS-3-HEXENE

Houston Fuel Atlanta Fuel Chicago Fuel

 PAGE A-16
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

CIS-3-HEXENE 2.5 2.1 2.1

DI-ISOPROPYL ETHER

TRANS-2-HEXENE 0.4 4.0 3.2 3.3

3-METHYL-TRANS-2-PENTENE 5.9 0.3 6.1 5.5

2-METHYL-2-PENTENE 0.3 3.7 0.4 3.4 0.4 3.1

3-METHYLCYCLOPENTENE

CIS-2-HEXENE 2.5 0.3 5.6 0.3 2.5

ETBE

3-METHYL-CIS-2-PENTENE 4.6 0.6 4.2 0.5 4.0

2,2-DIMETHYLPENTANE, NOTE A 1.9 16.8 1.1 17.5 1.3 18.7

METHYLCYCLOPENTANE, NOTE A 1.9 16.4 1.1 17.1 1.2 18.4

2,4-DIMETHYLPENTANE 1.5 13.5 1.2 15.2 1.5 17.1

2,2,3-TRIMETHYLBUTANE 1.1 0.9 1.0

3,4-DIMETHYL-1-PENTENE

1-METHYLCYCLOPENTENE 0.9 13.9 2.1 9.1 0.9 8.5

BENZENE 3.8 23.1 5.6 25.2 5.6 21.4

3-METHYL-1-HEXENE

3,3-DIMETHYLPENTANE 0.4 0.8 1.9 1.1

CYCLOHEXANE 16.9 16.3 21.3

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 5.1 32.2 4.1 34.7 4.5 38.0

1,1-DIMETHYLCYCLOPENTANE

TERT-AMYL METHYL ETHER

CYCLOHEXENE 0.4 0.5 0.3

3-METHYLHEXANE 3.0 17.3 2.7 18.5 3.0 18.1

CIS-1,3-DIMETHYLCYCLOPENTANE 0.6 3.0 0.5 3.3 0.5 4.1

3-ETHYLPENTANE 0.6 0.5 0.6 6.6

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.4 2.4 0.3 3.1 0.4 3.2

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 4.2 34.8 3.6 38.2 4.2 31.8

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 1.2 1.1

HEPTANE 4.2 15.5 4.0 17.8 4.6 17.2

CIS-3-HEPTENE

UNIDENTIFIED C7 1.4 3.3 0.5

2-METHYL-2-HEXENE

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 1.4 0.7 0.7

3-ETHYL-CIS-2-PENTENE

2,4,4-TRIMETHYL-1-PENTENE 0.3 1.9 0.3 1.0 1.2

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 1.1 0.5 0.6

METHYLCYCLOHEXANE 1.7 6.0 1.5 7.4 1.7 9.5

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 1.0 1.0 1.2

2,4,4-TRIMETHYL-2-PENTENE 0.3

2,2,3-TRIMETHYLPENTANE 1.3 6.9 0.4 6.3 9.0

 PAGE A-17
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 0.8 5.9 0.3 1.4 0.6 3.5

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.3 1.5 0.3 1.3 1.6

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 0.6 0.5 0.6

2,3,4-TRIMETHYLPENTANE 2.7 13.8 2.6 10.8 2.9 13.9

2,3,3-TRIMETHYLPENTANE 2.1 17.5 1.9 10.6 2.4 19.3

TOLUENE 10.2 31.4 14.8 44.4 15.7 32.3

2,3-DIMETHYLHEXANE 10.2 8.3 9.5

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 1.7

3,4-DIMETHYLHEXANE, NOTE B

4-METHYLHEPTANE 1.5 7.9 6.6 1.9 8.0

3-METHYLHEPTANE 1.7 8.4 1.4 4.7 1.9 8.0

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE

2,2,5-TRIMETHYLHEXANE 0.8 3.7 0.6 3.8 1.1 5.3

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 0.7 0.5 0.6

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.4

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE 0.3 0.4

1-OCTENE

TRANS-4-OCTENE

OCTANE 1.3 4.1 1.5 4.0 1.5 4.8

UNIDENTIFIED C8 0.3 1.1 1.7

TRANS-2-OCTENE 0.4

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.3 0.3 0.3 0.7

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 0.3

2,4-DIMETHYLHEPTANE 0.6 0.7

4,4-DIMETHYLHEPTANE

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE

2,6-DIMETHYLHEPTANE, NOTE D 0.3 1.1 0.5 1.0 0.5 1.5

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.3 0.9 0.4 1.0 0.5 1.5

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E

ETHYLBENZENE 2.9 6.0 4.4 7.3 3.8 6.4

 PAGE A-18
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 7.7 14.3 13.8 23.1 10.9 18.4

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 0.4 1.4 0.7 2.3 0.6 1.6

3-METHYLOCTANE 0.3 1.0 1.1 1.3

STYRENE

o-XYLENE 0.5 5.1 1.6 8.0 10.2 8.7

1-NONENE 7.0 1.3

TRANS-3-NONENE

CIS-3-NONENE

NONANE 2.5 0.6 0.9 0.6 1.1

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) 0.5 1.8 0.5

2,2-DIMETHYLOCTANE 0.9

2,4-DIMETHYLOCTANE

n-PROPYLBENZENE 1.3 1.3 0.5 0.4

1-METHYL-3-ETHYLBENZENE 3.5 3.4 0.9

1-METHYL-4-ETHYLBENZENE 0.5 0.9 0.3

1,3,5-TRIMETHYLBENZENE 2.5 1.8 0.3

1-METHYL-2-ETHYLBENZENE 1.8 0.4 0.6

1,2,4-TRIMETHYLBENZENE

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F 1.4 2.3

ISOBUTYLBENZENE, NOTE F 1.3 2.1

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene)

1-METHYL-3-ISOPROPYLBENZENE

1,2,3-TRIMETHYLBENZENE 2.2 0.7

1-METHYL-4-ISOPROPYLBENZENE 1.0 1.1

INDAN

1-METHYL-2-ISOPROPYLBENZENE 0.3

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE

1-METHYL-3-N-PROPYLBENZENE 0.3 0.3

1-METHYL-4-N-PROPYLBENZENE, NOTE G 1.8

1,2 DIETHYLBENZENE 1.8

1-METHYL-2-N-PROPYLBENZENE 0.5

1,4-DIMETHYL-2-ETHYLBENZENE 0.7

1,3-DIMETHYL-4-ETHYLBENZENE 0.4 1.1 1.5 0.6

1,2-DIMETHYL-4-ETHYLBENZENE

1,3-DIMETHYL-2-ETHYLBENZENE

UNDECANE 0.4

1,2-DIMETHYL-3-ETHYLBENZENE

1,2,4,5-TETRAMETHYLBENZENE

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

 PAGE A-19
HYDROCARBON SPECIATION DATA

SHED TEST

FORD F-150

SHED results, mg

FT-4614-S FT-4614-M FT-4637-S FT-4637-M FT-4640-S FT-4640-M

COMPOUND 7/17/2002 7/19/2002 7/24/2002 7/23/2002 7/26/2002 7/29/2002

Houston Fuel Atlanta Fuel Chicago Fuel

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE

TERT-1-BUT-2-METHYLBENZENE

1,2,3,4-TETRAMETHYLBENZENE

N-PENT-BENZENE 0.3

TERT-1-BUT-3,5-DIMETHYLBENZENE 0.1

TERT-1-BUTYL-4-ETHYLBENZENE 1.3

NAPHTHALENE

DODECANE 0.8

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

UNIDENTIFIED C9-C12+ 7.5 3.3 15.8 16.7 4.5 8.6

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

 PAGE A-20
APPENDIX B 

HYDROCARBON SPECIATION DATA 

FOR TOYOTA CAMRY 

TABLE OF CONTENTS FOR APPENDIX B 

FTP Composite Results, Winter 2005, pp. B1-B5 

SHED Test Results, Winter 2005, pp. B6-B10 

FTP Composite Results, Summer 2002, pp. B11-B15 

SHED Test Results, Summer 2002, pp. B16-20 

A blank space in the tables indicates that the compound was not detected during analysis. A 

“Trace” value indicates that the compound was detected, but computations of mass or mass rate 

resulted in a value of less than 0.05. An “*” in the table indicates a malfunction of the analytical 

equipment during sample analysis and that no data are available. 
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

METHANE 67.0 497.2 37.8 441.0 104.6 422.3

ETHANE 6.0 29.1 7.6 31.1 8.5 29.8

ETHYLENE 19.7 317.6 27.6 323.9 29.0 309.1

PROPANE 0.4 2.4 1.0 2.6 1.2 2.6

PROPYLENE 11.0 127.8 16.5 148.6 15.8 123.1

ACETYLENE 8.5 772.5 10.7 736.3 9.9 621.4

PROPADIENE 0.6 11.5 0.8 10.7 8.8

BUTANE 5.5 58.8 10.3 82.0 16.5 95.5

TRANS-2-BUTENE 0.9 9.2 1.3 10.3 1.4 9.2

1-BUTENE 2.2 21.7 2.9 22.6 3.1 20.8

2-METHYLPROPENE (ISOBUTYLENE) 8.7 80.1 6.1 49.9 5.1 38.2

2,2-DIMETHYLPROPANE (NEOPENTANE) 9.4 131.9 11.6 115.4 17.9 128.1

PROPYNE 0.1 1.0 0.1 1.1

1,3-BUTADIENE 2.7 32.0 3.7 34.3 4.3 36.7

2-METHYLPROPANE (ISOBUTANE) 0.8 9.4 1.0 7.0 1.1 7.1

1-BUTYNE

METHANOL

CIS-2-BUTENE 0.7 7.4 0.9 8.1 1.0 6.9

3-METHYL-1-BUTENE

ETHANOL 15.0 165.2

2-METHYLBUTANE (ISOPENTANE) 0.6 14.5 0.7 1.2 0.9 11.9

2-BUTYNE

1-PENTENE 0.7 10.7 0.7 6.3 1.4 8.0

2-METHYL-1-BUTENE 1.3 18.5 0.8 11.3 1.6 15.6

PENTANE 4.0 65.4 6.6 70.1 7.4 51.7

UNIDENTIFIED C5 OLEFINS 0.8 2.5 Trace 0.7 0.6

2-METHYL-1,3-BUTADIENE 0.5 9.5 0.8 8.6 1.3 9.0

TRANS-2-PENTENE 0.8 14.7 0.7 8.7 1.7 14.8

3,3-DIMETHYL-1-BUTENE 0.1 0.5 Trace 0.4 Trace 0.4

CIS-2-PENTENE 0.4 7.9 0.4 5.0 0.9 6.9

2-METHYL-2-BUTENE 0.5 21.2 0.8 11.6 2.5 22.9

TERT-BUTANOL

CYCLOPENTADIENE 3.4 0.1 1.9 0.1 1.6

2,2-DIMETHYLBUTANE 1.0 13.8 1.0 9.5 0.8 5.1

CYCLOPENTENE 0.3 4.5 0.3 3.1 0.6 5.3

4-METHYL-1-PENTENE 0.3 3.2 0.3 2.0 0.5 3.0

3-METHYL-1-PENTENE

CYCLOPENTANE 0.4 8.1 0.4 5.4 0.6 4.5

2,3-DIMETHYLBUTANE 1.5 19.4 1.6 15.9 1.8 12.1

MTBE 3.8 149.5 1.9 0.2 2.5

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 7.2 98.2 5.5 53.7 6.5 44.5

4-METHYL-TRANS-2-PENTENE 1.4 1.7 0.1 1.6 0.2 3.1

3-METHYLPENTANE 4.8 66.8 3.7 34.7 4.4 28.8

2-METHYL-1-PENTENE 0.3 4.5 0.3 3.1 0.6 4.0

1-HEXENE 0.3 4.5 0.3 3.1 0.6 4.0

HEXANE 4.7 68.9 3.5 35.6 3.6 24.7

UNIDENTIFIED C6 0.9 9.5 0.6 5.5 0.7 5.4

TRANS-3-HEXENE

CIS-3-HEXENE 0.2 3.7 0.1 1.8 0.4 3.8

DI-ISOPROPYL ETHER 0.1

TRANS-2-HEXENE 0.3 5.9 0.2 3.0 0.7 5.7

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE B-1
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 0.3 7.1 0.3 4.4 1.0 9.3

2-METHYL-2-PENTENE 0.2 5.8 0.2 2.7 0.6 5.8

3-METHYLCYCLOPENTENE 0.1 Trace

CIS-2-HEXENE 0.1 1.7 Trace 1.6 0.3 3.1

ETBE

3-METHYL-CIS-2-PENTENE 0.6 5.0 0.7 2.9 0.7 6.7

2,2-DIMETHYLPENTANE, NOTE A 1.2 20.6 0.9 11.9 1.9 13.6

METHYLCYCLOPENTANE, NOTE A 1.2 20.2 0.9 11.7 1.9 13.4

2,4-DIMETHYLPENTANE 0.8 10.8 1.3 11.9 1.0 6.3

2,2,3-TRIMETHYLBUTANE 0.1 1.5 0.1 0.9 Trace 0.4

3,4-DIMETHYL-1-PENTENE Trace 0.4 Trace 0.4 0.1 0.5

1-METHYLCYCLOPENTENE 0.3 6.4 0.5 4.5 0.6 4.8

BENZENE 5.0 78.4 9.9 116.0 8.3 84.6

3-METHYL-1-HEXENE 0.1 0.6 1.3 1.2

3,3-DIMETHYLPENTANE 0.6 5.9 0.4 3.3 0.4 0.4

CYCLOHEXANE 0.2 2.8 0.3 3.7 0.6 6.3

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 5.0 69.0 5.5 51.6 3.8 26.2

1,1-DIMETHYLCYCLOPENTANE 0.1 0.1 0.8 0.1 1.1

TERT-AMYL METHYL ETHER

CYCLOHEXENE 0.6 20.4 0.1 1.2 0.3 2.2

3-METHYLHEXANE 4.4 57.2 3.8 36.1 2.4 16.2

CIS-1,3-DIMETHYLCYCLOPENTANE 0.5 7.0 0.5 4.9 1.0 7.7

3-ETHYLPENTANE 0.8 11.5 0.8 7.8 1.2 8.8

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.4 6.1 0.5 4.7 0.9 7.1

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 1.2 14.3 8.2 72.9 2.9 19.9

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 0.2 2.1 0.1 1.8 0.4 4.1

HEPTANE 3.1 41.0 3.5 34.0 2.6 17.4

CIS-3-HEPTENE

UNIDENTIFIED C7 0.3 6.6 0.1 2.3 0.6 5.0

2-METHYL-2-HEXENE 1.9 0.6 3.8

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 0.1 2.6 0.1 1.7 0.2 2.5

3-ETHYL-CIS-2-PENTENE

2,4,4-TRIMETHYL-1-PENTENE 0.1 3.0 0.1 1.6 0.3 3.2

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 0.1 1.6 0.1 1.2 0.2 1.7

METHYLCYCLOHEXANE 1.0 13.4 1.5 14.1 2.9 20.7

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 0.1 2.4 0.3 2.6 0.3 1.9

2,4,4-TRIMETHYL-2-PENTENE 0.1 0.1 0.1 0.1 0.1

2,2,3-TRIMETHYLPENTANE 0.6 7.5 1.2 13.5 0.9 7.2

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 0.7 9.0 1.4 15.6 1.0 5.9

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.2 4.2 0.2 3.2 0.4 2.7

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 0.1 1.6 0.1 1.3 0.2 2.4

PAGE B-2
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 0.5 7.0 1.9 24.0 1.8 12.1

2,3,3-TRIMETHYLPENTANE 0.2 3.1 2.1 19.8 0.8 9.8

TOLUENE 8.4 121.2 21.8 242.4 9.9 107.2

2,3-DIMETHYLHEXANE 1.0 10.9 1.4 20.4 0.5 9.4

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 1.0 0.2 1.6

3,4-DIMETHYLHEXANE, NOTE B 0.4 4.7 0.7 3.0 0.1 0.3

4-METHYLHEPTANE 1.5 18.6 1.0 16.4 1.4 10.1

3-METHYLHEPTANE 1.8 22.5 0.1 18.6 1.2 8.1

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE 0.3 0.4

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE 4.9 1.6 3.6 0.7 6.0

2,2,5-TRIMETHYLHEXANE 0.2 2.3 0.6 5.2 1.0 6.8

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE Trace

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 0.2 3.2 0.2 2.1 0.6 3.6

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.1 2.0 0.1 1.1 0.1

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE 0.1 2.5 0.1 1.6 0.2 2.6

1-OCTENE

TRANS-4-OCTENE 0.1 2.3 Trace 1.0 1.0

OCTANE 1.1 14.3 1.4 12.4 0.9 6.1

UNIDENTIFIED C8 0.9 10.9 0.3 3.7 0.4 4.2

TRANS-2-OCTENE 2.0 1.6

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE 0.1 1.1 0.1 0.7 0.1 0.8

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.1 0.6 0.1 1.0 0.1 1.3

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 1.7 0.1 1.2 0.1 1.2

2,4-DIMETHYLHEPTANE 0.2 1.6 0.1 1.4 0.1 0.9

4,4-DIMETHYLHEPTANE 0.1 1.0 0.1 0.6 0.1 0.7

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE 0.2

2,6-DIMETHYLHEPTANE, NOTE D 0.3 3.2 0.3 2.7 0.4 2.8

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.2 2.4 0.2 2.0 0.2 1.2

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E 0.2 2.4 0.2 2.0 0.2 1.2

ETHYLBENZENE 3.7 45.8 6.2 54.5 3.5 23.3

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 13.2 165.9 19.2 170.4 10.9 75.3

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 0.9 12.2 0.9 8.6 0.6 5.0

3-METHYLOCTANE 0.6 8.1 0.7 5.7 0.4 3.2

STYRENE 1.1 16.1 1.8 19.7 9.2

PAGE B-3
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 5.3 64.1 7.7 66.7 3.9 27.3

1-NONENE 0.2 2.0 0.2 2.4 0.3 2.6

TRANS-3-NONENE

CIS-3-NONENE

NONANE 0.4 5.9 0.5 4.9 0.4 3.6

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) Trace 0.8 Trace 0.6 Trace 0.4

2,2-DIMETHYLOCTANE 0.1 1.4 0.1 0.9 0.1 1.3

2,4-DIMETHYLOCTANE 0.1 1.4 0.1 0.7 0.2 1.6

n-PROPYLBENZENE 1.0 16.1 1.6 17.5 0.9 8.3

1-METHYL-3-ETHYLBENZENE 4.5 66.5 7.1 69.6 3.7 34.2

1-METHYL-4-ETHYLBENZENE 1.9 27.3 2.7 27.7 1.5 12.5

1,3,5-TRIMETHYLBENZENE 2.3 32.6 2.8 30.4 2.3 17.9

1-METHYL-2-ETHYLBENZENE 1.9 23.6 2.6 26.9 1.8 12.2

1,2,4-TRIMETHYLBENZENE 7.2 105.3 10.8 114.8 6.6 58.7

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F 0.2 2.5 Trace 1.8 0.8 3.3

ISOBUTYLBENZENE, NOTE F 0.2 2.4 Trace 1.7 0.7 3.1

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene) 0.1 1.3 0.3 2.0 0.1 1.2

1-METHYL-3-ISOPROPYLBENZENE

1,2,3-TRIMETHYLBENZENE 1.6 23.9 2.5 28.0 1.9 14.4

1-METHYL-4-ISOPROPYLBENZENE 0.1 1.3 0.1 1.4 0.1 1.2

INDAN

1-METHYL-2-ISOPROPYLBENZENE 0.8 11.3 1.3 9.0 1.1 10.0

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE Trace 0.3

1-METHYL-3-N-PROPYLBENZENE 0.5 11.0 2.4 19.4 0.9 9.0

1-METHYL-4-N-PROPYLBENZENE, NOTE G 1.2 17.7 1.9 24.7 1.8 15.5

1,2 DIETHYLBENZENE 1.8 0.1 1.4 0.2

1-METHYL-2-N-PROPYLBENZENE 0.2 2.3 0.5 6.9 0.3 1.3

1,4-DIMETHYL-2-ETHYLBENZENE 1.3 11.1 1.1 7.9

1,3-DIMETHYL-4-ETHYLBENZENE 1.3 13.3 1.3 7.4 1.9 9.5

1,2-DIMETHYL-4-ETHYLBENZENE 2.1

1,3-DIMETHYL-2-ETHYLBENZENE 1.6 0.1 2.9 0.2 1.3

UNDECANE 0.2 4.9 0.7 7.3 0.7 3.7

1,2-DIMETHYL-3-ETHYLBENZENE 0.4 5.3

1,2,4,5-TETRAMETHYLBENZENE 0.1 7.2 0.7 9.3 1.0 9.7

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE 0.1

1,2,3,5-TETRAMETHYLBENZENE 1.0 11.8 1.4 17.4 0.9

TERT-1-BUT-2-METHYLBENZENE 0.2 7.1 0.6 8.0 1.2 7.1

1,2,3,4-TETRAMETHYLBENZENE 0.1 10.7 0.8 8.6

N-PENT-BENZENE 0.3 7.0 0.5 7.8 0.1 3.0

TERT-1-BUT-3,5-DIMETHYLBENZENE

TERT-1-BUTYL-4-ETHYLBENZENE Trace 8.0 0.3 5.8 0.2 2.6

NAPHTHALENE 2.5 1.3

DODECANE 0.2 5.1 0.2 4.3 0.1 1.5

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE B-4
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 6.3 136.7 9.4 120.6 13.9 144.1

FORMALDEHYDE 4.8 36.2 4.0 48.7 3.6 49.6

ACETALDEHYDE 1.1 9.3 1.3 9.1 3.0 18.7

ACROLEIN 0.4 3.8 0.3 4.4 0.1 2.5

ACETONE 0.8 5.5 0.4 2.1 0.4 1.7

PROPIONALDEHYDE 0.2 4.2 0.2 2.9 0.5 4.7

CROTONALDEHYDE 0.3 4.0 0.3 2.8 0.5 2.9

ISOBUTYRALDEHYDE, NOTE H Trace 0.8 0.2 0.8 0.2 0.7

METHYL ETHYL KETONE, NOTE H Trace 0.8 0.2 0.8 0.2 0.7

BENZALDEHYDE 0.4 5.4 0.9 8.1 0.6 4.6

ISOVALERALDEHYDE Trace 0.6 0.1 0.7 0.1 0.8

VALERALDEHYDE 0.5 0.1 0.6 0.1 0.6

O-TOLUALDEHYDE 0.1 1.7 0.2 0.9 0.1 1.5

M/P-TOLUALDEHYDE 0.9 7.4 1.2 7.7 0.7 4.3

HEXANALDEHYDE 0.1 0.1 0.1 0.1 0.1 0.1

DIMETHYLBENZALDEHYDE 0.2 3.5 0.5 3.3 0.4 2.1

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

H - Isobutyraldehyde and methyl ethyl ketone co-elute. LC peak area split equally between the two compounds.

PAGE B-5
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

METHANE -- -- -- -- -- --

ETHANE 0.2 6.8 1.6 0.1 3.3

ETHYLENE 1.0 0.4 0.4

PROPANE 34.4 22.8 0.1 55.6

PROPYLENE 0.2 9.3 11.2 0.2 7.7

ACETYLENE

PROPADIENE

BUTANE 4.9 2046.6 8.8 1982.4 22.2 2917.3

TRANS-2-BUTENE 0.6 80.8 0.5 43.9 0.9 69.3

1-BUTENE 49.3 19.3 0.2 38.3

2-METHYLPROPENE (ISOBUTYLENE) 0.4 39.5 0.2 18.5 0.4 45.2

2,2-DIMETHYLPROPANE (NEOPENTANE) 7.5 1790.2 6.9 1065.8 14.3 1695.8

PROPYNE

1,3-BUTADIENE 3.7 0.5 1.6

2-METHYLPROPANE (ISOBUTANE) 356.6 0.4 225.1 1.0 266.1

1-BUTYNE

METHANOL

CIS-2-BUTENE 0.4 74.1 0.2 42.7 0.6 53.2

3-METHYL-1-BUTENE

ETHANOL 44.7 1301.8

2-METHYLBUTANE (ISOPENTANE)

2-BUTYNE

1-PENTENE 0.4 73.7 3.3 20.6 0.7 67.6

2-METHYL-1-BUTENE 0.9 95.6 1.1 42.6 1.6 163.0

PENTANE 2.8 675.1 5.8 480.1 8.9 611.6

UNIDENTIFIED C5 OLEFINS

2-METHYL-1,3-BUTADIENE 9.6 0.7 7.0

TRANS-2-PENTENE 1.2 128.2 0.9 41.9 2.9 169.2

3,3-DIMETHYL-1-BUTENE 4.0 2.6

CIS-2-PENTENE 0.7 67.2 0.4 21.5 1.3 93.2

2-METHYL-2-BUTENE 2.8 140.4 1.8 63.6 4.6 292.2

TERT-BUTANOL

CYCLOPENTADIENE 3.6 3.3

2,2-DIMETHYLBUTANE 0.3 76.3 0.3 33.7 0.4 27.9

CYCLOPENTENE 22.1 6.8 0.7 32.2

4-METHYL-1-PENTENE 0.8 12.8 0.5 3.7 16.0

3-METHYL-1-PENTENE

CYCLOPENTANE 48.4 20.7 0.9 32.2

2,3-DIMETHYLBUTANE 0.6 96.9 0.8 48.9 1.1 65.5

MTBE 1529.3 6.3 25.2

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 3.2 414.3 8.6 152.5 4.6 218.8

4-METHYL-TRANS-2-PENTENE 2.1 25.5 7.6 1.9 15.0

3-METHYLPENTANE 2.0 252.0 2.3 85.2 2.8 124.8

2-METHYL-1-PENTENE 0.4 0.2 3.5 0.4 16.0

1-HEXENE 0.4 0.2 3.5 0.4 16.0

HEXANE 3.4 208.1 3.3 67.5 3.5 90.1

UNIDENTIFIED C6 0.4 39.2 0.3 4.2

TRANS-3-HEXENE

CIS-3-HEXENE 12.2 4.0 0.6 14.6

DI-ISOPROPYL ETHER 21.4

TRANS-2-HEXENE 0.4 15.8 0.4 5.3 0.8 37.2

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE B-6
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 1.3 25.8 0.6 8.8 1.3 21.7

2-METHYL-2-PENTENE 0.5 16.8 0.3 5.4 0.5

3-METHYLCYCLOPENTENE 0.2

CIS-2-HEXENE 0.3 10.4 3.3 0.4 11.2

ETBE

3-METHYL-CIS-2-PENTENE 0.4 15.5 0.4 5.3 0.5 23.4

2,2-DIMETHYLPENTANE, NOTE A 1.2 54.8 0.9 19.9 1.4 42.8

METHYLCYCLOPENTANE, NOTE A 1.2 53.6 0.9 19.5 1.4 41.9

2,4-DIMETHYLPENTANE 24.1 0.3 15.8 0.1 18.1

2,2,3-TRIMETHYLBUTANE 0.2 3.5 1.2 0.5 2.2

3,4-DIMETHYL-1-PENTENE 1.2 1.0

1-METHYLCYCLOPENTENE 0.9 11.5 1.0 6.2 1.1 24.2

BENZENE 3.1 23.8 2.6 28.2 5.4 41.4

3-METHYL-1-HEXENE

3,3-DIMETHYLPENTANE 10.0 0.6 3.9 1.0 2.1

CYCLOHEXANE 6.9 14.3

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 1.8 91.1 2.0 42.5 2.7 40.9

1,1-DIMETHYLCYCLOPENTANE 1.6

TERT-AMYL METHYL ETHER 2.6

CYCLOHEXENE 21.9 0.5

3-METHYLHEXANE 1.3 79.2 1.8 27.2 1.8 23.1

CIS-1,3-DIMETHYLCYCLOPENTANE 0.4 11.5 0.2 4.4 0.4 11.1

3-ETHYLPENTANE 0.4 13.4 0.3 6.0 0.5 12.1

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.3 7.7 0.2 3.7 0.3 9.6

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 0.6 13.6 0.5 39.7 1.4 20.7

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 0.2 1.4 0.4 5.0

HEPTANE 1.6 36.4 1.9 20.2 2.4 19.8

CIS-3-HEPTENE

UNIDENTIFIED C7 0.8 6.6 0.6 0.3 6.0

2-METHYL-2-HEXENE 3.9 5.4

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 2.7 0.8 2.4

3-ETHYL-CIS-2-PENTENE

2,4,4-TRIMETHYL-1-PENTENE 0.2 3.4 1.2 0.2 4.2

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 1.7 0.6 1.8

METHYLCYCLOHEXANE 1.1 12.2 0.7 7.7 1.3 21.7

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 0.7 1.9 1.0 1.3

2,4,4-TRIMETHYL-2-PENTENE 3.3 0.5 1.7 0.3

2,2,3-TRIMETHYLPENTANE 3.3 4.3 0.4 3.7

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 0.3 4.3 0.3 4.3 0.3 7.0

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 1.5 0.8 1.8

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 0.5 1.4

PAGE B-7
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 0.5 5.9 0.4 8.4 1.0 9.5

2,3,3-TRIMETHYLPENTANE 0.3 1.4 0.4 4.7 0.4 5.7

TOLUENE 4.8 31.3 8.2 48.9 11.8 43.5

2,3-DIMETHYLHEXANE 4.1 1.7 2.4

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 1.2

3,4-DIMETHYLHEXANE, NOTE B 0.6 0.4

4-METHYLHEPTANE 8.8 0.5 5.1 0.9 5.1

3-METHYLHEPTANE 0.6 9.2 0.5 4.8 0.9 5.9

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE

2,2,5-TRIMETHYLHEXANE 1.6 0.1 1.3 0.3 3.1

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 1.2 0.4 0.2 1.1

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.2

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE 1.1

1-OCTENE

TRANS-4-OCTENE 0.2 0.6

OCTANE 0.4 4.2 0.5 2.2 0.5 2.8

UNIDENTIFIED C8 0.8 2.3 0.3 0.2

TRANS-2-OCTENE 0.8 0.2 0.5

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE 0.2

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.5

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 0.3 0.2

2,4-DIMETHYLHEPTANE 0.1 0.2 0.4

4,4-DIMETHYLHEPTANE 0.4

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE

2,6-DIMETHYLHEPTANE, NOTE D 0.7 0.4 0.9

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.3 0.1 0.2

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E 0.3 0.1 0.2

ETHYLBENZENE 1.6 5.2 2.0 4.4 2.2 5.2

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 3.3 11.4 4.3 10.0 3.0 11.9

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 0.6

3-METHYLOCTANE

STYRENE

PAGE B-8
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 1.8 0.7 2.2 0.2 2.2

1-NONENE 0.2

TRANS-3-NONENE

CIS-3-NONENE

NONANE 0.3

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE)

2,2-DIMETHYLOCTANE

2,4-DIMETHYLOCTANE

n-PROPYLBENZENE

1-METHYL-3-ETHYLBENZENE

1-METHYL-4-ETHYLBENZENE

1,3,5-TRIMETHYLBENZENE

1-METHYL-2-ETHYLBENZENE

1,2,4-TRIMETHYLBENZENE 0.2 0.3

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F

ISOBUTYLBENZENE, NOTE F

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene)

1-METHYL-3-ISOPROPYLBENZENE

1,2,3-TRIMETHYLBENZENE

1-METHYL-4-ISOPROPYLBENZENE

INDAN

1-METHYL-2-ISOPROPYLBENZENE

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE

1-METHYL-3-N-PROPYLBENZENE

1-METHYL-4-N-PROPYLBENZENE, NOTE G

1,2 DIETHYLBENZENE

1-METHYL-2-N-PROPYLBENZENE

1,4-DIMETHYL-2-ETHYLBENZENE

1,3-DIMETHYL-4-ETHYLBENZENE

1,2-DIMETHYL-4-ETHYLBENZENE

1,3-DIMETHYL-2-ETHYLBENZENE

UNDECANE

1,2-DIMETHYL-3-ETHYLBENZENE

1,2,4,5-TETRAMETHYLBENZENE

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE

TERT-1-BUT-2-METHYLBENZENE

1,2,3,4-TETRAMETHYLBENZENE

N-PENT-BENZENE 0.2

TERT-1-BUT-3,5-DIMETHYLBENZENE

TERT-1-BUTYL-4-ETHYLBENZENE

NAPHTHALENE

DODECANE

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE B-9
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

C-HOU-N C-HOU-MF C-ATL-N C-ATL-MF C-CHI-N C-CHI-MF

COMPOUND 3/31/2005 4/1/2005 4/5/2005 4/6/2005 4/12/2005 4/13/2005

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 1.3 0.4 0.3

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

PAGE B-10
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 7/18/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

METHANE 39.8 482.9 39.0 395.1 34.7 480.9

ETHANE 5.2 * 8.2 27.6 * 38.8

ETHYLENE 11.4 * 19.9 344.8 * 337.8

PROPANE * 0.3 3.0 * 6.4

PROPYLENE 0.2 * *

ACETYLENE 3.9 * 4.9 528.6 * 530.1

PROPADIENE * *

BUTANE 1.3 * 1.2 14.4 * 8.8

TRANS-2-BUTENE * 0.6 6.9 * 1.9

1-BUTENE 1.0 * 2.0 22.4 * 2.4

2-METHYLPROPENE (ISOBUTYLENE) 6.0 * 4.2 56.5 * 6.1

2,2-DIMETHYLPROPANE (NEOPENTANE) 0.3 * 0.7 *

PROPYNE * *

1,3-BUTADIENE * 0.3 7.7 *

2-METHYLPROPANE (ISOBUTANE) * 166.5 *

1-BUTYNE * *

METHANOL * *

CIS-2-BUTENE * 0.1 16.0 *

3-METHYL-1-BUTENE * *

ETHANOL * 7.2 256.2

2-METHYLBUTANE (ISOPENTANE) 3.5 * 0.6 11.0 * 71.7

2-BUTYNE

1-PENTENE 0.4 9.0 6.2 0.4 2.1

2-METHYL-1-BUTENE 0.6 14.5 0.4 10.7 0.5 13.5

PENTANE 2.4 40.6 1.1 42.8 1.0 17.5

UNIDENTIFIED C5 OLEFINS 0.2 6.3 0.3 2.9 9.0

2-METHYL-1,3-BUTADIENE 0.5 9.1 2.4 8.3 0.6 11.2

TRANS-2-PENTENE 0.7 14.2 0.7 9.1 0.6 11.4

3,3-DIMETHYL-1-BUTENE 0.3 0.4 0.3 4.8

CIS-2-PENTENE 0.4 8.3 0.3 5.0 0.3 6.0

2-METHYL-2-BUTENE 1.1 20.4 0.9 13.5 1.2 19.9

TERT-BUTANOL

CYCLOPENTADIENE 0.2 7.3 5.3 0.3 6.3

2,2-DIMETHYLBUTANE 0.5 6.4 0.5 7.2 0.6 9.7

CYCLOPENTENE 1.2 4.8 0.2 3.2 0.2 4.1

4-METHYL-1-PENTENE 0.2 2.8 0.2 2.6 0.1 1.8

3-METHYL-1-PENTENE 1.7

CYCLOPENTANE 0.3 4.9 0.2 4.4 0.3 2.4

2,3-DIMETHYLBUTANE 0.9 16.8 0.8 11.8 1.5 24.7

MTBE 1.3 54.8

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 2.6 62.7 2.5 40.0 2.6 44.5

4-METHYL-TRANS-2-PENTENE 0.2 2.2 Trace 0.9

3-METHYLPENTANE 2.5 47.5 1.8 26.9 1.6 32.1

2-METHYL-1-PENTENE 0.2 4.1 0.2 2.5 0.1 2.4

1-HEXENE 0.2 3.5 0.2 2.5 0.1 2.5

HEXANE 2.8 50.8 1.8 26.8 1.3 27.4

UNIDENTIFIED C6 0.4 61.2 0.5 7.9 0.3 6.6

TRANS-3-HEXENE

CIS-3-HEXENE 2.8 0.1 1.3 1.6

DI-ISOPROPYL ETHER

TRANS-2-HEXENE 0.1 4.5 0.1 2.1 0.1 2.5

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE B-11
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 7/18/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 0.2 6.6 0.2 16.6 0.2 4.4

2-METHYL-2-PENTENE 0.3 4.3 0.1 2.4 0.1 3.1

3-METHYLCYCLOPENTENE 0.2

CIS-2-HEXENE 0.2 2.5 0.1 1.2 1.4

ETBE

3-METHYL-CIS-2-PENTENE 0.4 5.2 0.3 2.6 0.2 3.5

2,2-DIMETHYLPENTANE, NOTE A 0.6 11.5 0.5 9.6 0.8 16.5

METHYLCYCLOPENTANE, NOTE A 0.6 11.3 0.5 9.4 0.8 16.2

2,4-DIMETHYLPENTANE 0.7 9.2 0.7 8.0 1.3 20.3

2,2,3-TRIMETHYLBUTANE 0.9 0.5 1.1

3,4-DIMETHYL-1-PENTENE 0.1

1-METHYLCYCLOPENTENE 0.4 8.2 0.2 6.5 0.3 6.2

BENZENE 3.8 95.9 9.0 138.3 42.9 99.3

3-METHYL-1-HEXENE Trace

3,3-DIMETHYLPENTANE 0.3 2.1 0.1 1.4 1.6

CYCLOHEXANE 0.2 3.4 0.4 5.6 0.9 11.9

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 2.7 33.0 2.8 30.5 4.3 56.6

1,1-DIMETHYLCYCLOPENTANE 0.6 1.3

TERT-AMYL METHYL ETHER

CYCLOHEXENE 0.1 1.2 0.1 1.0 1.3

3-METHYLHEXANE 2.4 23.2 2.0 21.7 2.3 28.8

CIS-1,3-DIMETHYLCYCLOPENTANE 0.2 3.6 0.2 2.9 0.3 6.3

3-ETHYLPENTANE 0.1 3.9 3.3

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.1 3.4 0.2 2.6 0.4 6.3

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 3.4 38.1 5.4 51.8 5.9 66.5

2-METHYL-1-HEXENE

TRANS-3-HEPTENE 0.1 2.6 0.1 1.0 0.6

HEPTANE 0.8 15.7 0.5 21.9 2.8 32.7

CIS-3-HEPTENE

UNIDENTIFIED C7 0.2 2.4 1.1 1.7

2-METHYL-2-HEXENE 2.6

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 0.1 1.9 Trace 0.8 0.8

3-ETHYL-CIS-2-PENTENE

2,4,4-TRIMETHYL-1-PENTENE 0.1 2.3 0.1 1.2 1.4

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 0.1 1.6 0.1 0.9 0.1 1.1

METHYLCYCLOHEXANE 0.6 7.6 0.8 11.2 1.4 20.6

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 0.1 1.2 0.1 1.5 0.1 2.3

2,4,4-TRIMETHYL-2-PENTENE

2,2,3-TRIMETHYLPENTANE 0.5 9.3 0.9 6.6 16.6

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 0.3 9.2 0.8 8.5 2.3 12.2

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.2 2.2 0.2 2.0 0.2 3.3

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE 0.0 0.9 Trace 0.5 1.4

PAGE B-12
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 7/18/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 1.8 19.3 1.6 15.0 2.8 30.7

2,3,3-TRIMETHYLPENTANE 2.3 34.8 1.5 18.2 2.9 52.4

TOLUENE 7.9 142.2 24.6 309.2 9.2 154.3

2,3-DIMETHYLHEXANE 1.3 18.0 1.7 2.5 29.1

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE 0.9

3,4-DIMETHYLHEXANE, NOTE B 1.1 0.1 0.8 0.1 1.7

4-METHYLHEPTANE 0.3 12.2 1.4 12.1 1.5 17.1

3-METHYLHEPTANE 1.0 12.4 0.9 10.3 1.3 14.1

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE 0.7

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE 0.1 3.0 0.3 2.0 0.4 4.3

2,2,5-TRIMETHYLHEXANE 0.4 5.8 0.6 7.0 1.7 17.3

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 1.0 3.1 0.3 2.0 0.3 3.3

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE 0.1 1.5 0.1 0.9 0.9

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE 0.1 2.0 0.1 1.0 0.1 1.2

1-OCTENE

TRANS-4-OCTENE

OCTANE 0.7 8.4 1.0 9.6 1.0 11.8

UNIDENTIFIED C8 0.2 3.8 0.7 0.1 1.7

TRANS-2-OCTENE 0.1 2.4 0.9 0.3

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE 0.1 1.1 Trace 0.4 0.2 0.3

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.1 1.1 0.1 1.3 0.3 3.0

CIS-1-METHYL-2-ETHYLCYCLOPENTANE 0.1 1.1 0.1 0.9 1.0

2,4-DIMETHYLHEPTANE 0.1 1.0 0.1 1.3 0.2 1.5

4,4-DIMETHYLHEPTANE Trace 0.5 Trace 0.3 0.5

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE 0.3 0.1

2,6-DIMETHYLHEPTANE, NOTE D 0.1 1.8 0.2 1.7 0.5 3.7

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.2 2.4 0.4 3.4 0.5 4.9

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E

ETHYLBENZENE 2.4 28.5 4.3 42.5 2.3 23.4

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 7.7 82.8 15.1 147.7 8.3 78.8

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 0.7 8.1 1.1 7.1 0.9 9.0

3-METHYLOCTANE 0.5 4.6 0.5 4.6 0.6 6.1

STYRENE 0.7 12.0 1.2 16.1 0.7 9.7

PAGE B-13
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 7/18/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 3.6 35.3 6.1 57.3 3.7 33.0

1-NONENE 0.2 2.7 0.2 2.0 0.4 4.3

TRANS-3-NONENE

CIS-3-NONENE

NONANE 0.4 3.1 0.7 5.3 0.9 8.0

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) 0.1 0.2 0.3 0.3 0.8

2,2-DIMETHYLOCTANE 0.1 0.4 0.1 0.8

2,4-DIMETHYLOCTANE 0.3 0.7 0.1 0.5 0.7

n-PROPYLBENZENE 0.8 8.6 1.7 15.6 0.7 8.5

1-METHYL-3-ETHYLBENZENE 2.9 42.6 7.1 53.4 4.6 39.3

1-METHYL-4-ETHYLBENZENE 0.8 19.5 3.4 19.4 12.2

1,3,5-TRIMETHYLBENZENE 1.5 19.5 3.8 29.7 1.5 14.4

1-METHYL-2-ETHYLBENZENE 1.3 16.2 3.1 24.4 0.9 12.5

1,2,4-TRIMETHYLBENZENE 7.0 76.8 14.8 79.5 6.1 70.2

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F 0.3 0.5 1.0 3.6 0.3 2.0

ISOBUTYLBENZENE, NOTE F 0.3 0.4 0.9 3.4 0.2 1.9

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene) 0.3 2.2 0.7

1-METHYL-3-ISOPROPYLBENZENE 19.2

1,2,3-TRIMETHYLBENZENE 1.3 0.5 3.5 30.6 1.2 15.6

1-METHYL-4-ISOPROPYLBENZENE 0.2 1.7

INDAN

1-METHYL-2-ISOPROPYLBENZENE 14.7 0.2 1.6 0.2 3.9

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE 6.3 1.0 0.5 1.2

1-METHYL-3-N-PROPYLBENZENE 0.6 1.9 21.1 0.9 14.7

1-METHYL-4-N-PROPYLBENZENE, NOTE G 1.6 0.6 0.1 39.2 1.4 0.2

1,2 DIETHYLBENZENE 0.1 1.2

1-METHYL-2-N-PROPYLBENZENE 0.2 1.2 0.2 1.5 0.2 4.5

1,4-DIMETHYL-2-ETHYLBENZENE 29.2 2.0 13.8 1.8 12.3

1,3-DIMETHYL-4-ETHYLBENZENE 2.1 3.2 13.0 3.3

1,2-DIMETHYL-4-ETHYLBENZENE 1.1 20.9 3.2 28.6 17.6

1,3-DIMETHYL-2-ETHYLBENZENE 2.6 0.3 0.3

UNDECANE 0.3 2.5 0.3 2.6 0.3 1.6

1,2-DIMETHYL-3-ETHYLBENZENE

1,2,4,5-TETRAMETHYLBENZENE 0.1 9.0 2.0 17.9 0.4 11.7

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE 2.0 0.2 0.1 0.8 0.4

TERT-1-BUT-2-METHYLBENZENE 10.8 Trace 0.7

1,2,3,4-TETRAMETHYLBENZENE 6.5 0.2 5.7 0.3 4.0

N-PENT-BENZENE 0.3

TERT-1-BUT-3,5-DIMETHYLBENZENE 0.1 11.2 1.1 23.2 29.0

TERT-1-BUTYL-4-ETHYLBENZENE

NAPHTHALENE 0.4 0.2 3.4 0.5 0.6

DODECANE 0.3 3.2 0.4 1.1 0.1 3.0

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE B-14
HYDROCARBON SPECIATION DATA

FTP COMPOSITE

TOYOTA CAMRY

FTP Composite, mg/mi

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 7/18/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 8.4 152.9 22.0 175.3 9.9 184.7

FORMALDEHYDE 2.2 59.2 2.6 53.0 2.3 63.6

ACETALDEHYDE 5.0 13.9 1.7 13.5 2.6 34.5

ACROLEIN 1.2 8.2 0.4 6.3 0.4 8.6

ACETONE 6.4 6.1 0.8 4.0 0.6 5.7

PROPIONALDEHYDE 0.8 2.7 0.4 6.4 0.2 3.0

CROTONALDEHYDE 2.9 4.0 0.8 4.8 0.3 3.9

ISOBUTYRALDEHYDE, NOTE H 1.1 2.1 0.2 1.4 0.2 1.5

METHYL ETHYL KETONE, NOTE H 1.1 2.1 0.2 1.4 0.2 1.5

BENZALDEHYDE 0.3 6.6 0.7 11.6 0.2 5.3

ISOVALERALDEHYDE 0.4 1.2 0.1 0.2 1.2

VALERALDEHYDE 0.6 0.8 0.1 1.0 0.1 1.1

O-TOLUALDEHYDE 0.4 2.1 0.3 3.3 0.1 2.1

M/P-TOLUALDEHYDE 0.4 7.0 0.6 11.2 0.2 6.6

HEXANALDEHYDE Trace Trace 0.1 Trace

DIMETHYLBENZALDEHYDE 0.2 4.0 Trace 2.4

*C1 - C4 DATA NOT AVAILABLE DUE TO INSTRUMENT MALFUNCTION

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

H - Isobutyraldehyde and methyl ethyl ketone co-elute. LC peak area split equally between the two compounds.

PAGE B-15
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 8/19/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

METHANE

ETHANE * * *

ETHYLENE * * *

PROPANE * * 6.0 * 9.2

PROPYLENE * * *

ACETYLENE * * *

PROPADIENE * * *

BUTANE * * 2.0 81.0 * 76.7

TRANS-2-BUTENE * * *

1-BUTENE * * 1.6 *

2-METHYLPROPENE (ISOBUTYLENE) * * 7.7 13.5 *

2,2-DIMETHYLPROPANE (NEOPENTANE) * * *

PROPYNE * * *

1,3-BUTADIENE * * * *

2-METHYLPROPANE (ISOBUTANE) * * 0.6 29.9 * 34.0

1-BUTYNE * * *

METHANOL * * *

CIS-2-BUTENE * * 3.5 *

3-METHYL-1-BUTENE * * *

ETHANOL * * 21.0 301.1

2-METHYLBUTANE (ISOPENTANE) * * * 495.8

2-BUTYNE

1-PENTENE 7.1 3.5

2-METHYL-1-BUTENE 1.3 10.6 6.9 18.7

PENTANE 4.1 48.4 0.5 46.1 1.1 38.2

UNIDENTIFIED C5 OLEFINS 11.1 2.2

2-METHYL-1,3-BUTADIENE 1.7 0.6 2.6 0.3 2.9 76.2

TRANS-2-PENTENE 13.0 7.2 0.6 0.7

3,3-DIMETHYL-1-BUTENE 0.9 1.0 35.5

CIS-2-PENTENE 3.2 7.5 0.4 3.7 0.6 19.2

2-METHYL-2-BUTENE 0.5 18.3 1.2 11.4 1.5 54.7

TERT-BUTANOL

CYCLOPENTADIENE 0.3

2,2-DIMETHYLBUTANE 3.0 4.1 1.7 23.4

CYCLOPENTENE 0.7 2.9 0.3 1.6 0.6 6.6

4-METHYL-1-PENTENE 0.7 1.3 0.8 2.7

3-METHYL-1-PENTENE

CYCLOPENTANE 4.2 0.4 3.4 0.9 11.9

2,3-DIMETHYLBUTANE 1.9 7.5 0.8 6.0 1.4 49.3

MTBE 59.8

4-METHYL-CIS-2-PENTENE

2-METHYLPENTANE 10.6 20.2 7.8 20.6 7.6 71.6

4-METHYL-TRANS-2-PENTENE 0.5 0.4

3-METHYLPENTANE 4.1 18.9 2.4 12.5 2.7 46.8

2-METHYL-1-PENTENE 1.7 0.2 0.7 2.6

1-HEXENE 1.7 0.2 0.7 2.6

HEXANE 4.8 19.4 3.4 10.2 3.5 31.9

UNIDENTIFIED C6 0.3 1.0

TRANS-3-HEXENE

CIS-3-HEXENE 1.0 0.4 1.8

DI-ISOPROPYL ETHER

TRANS-2-HEXENE 1.0 0.3 2.2

Houston Fuel Atlanta Fuel Chicago Fuel

PAGE B-16
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 8/19/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

3-METHYL-TRANS-2-PENTENE 0.7 2.3 0.7 1.1 4.6

2-METHYL-2-PENTENE 0.5 1.8 0.9 0.6 3.1

3-METHYLCYCLOPENTENE

CIS-2-HEXENE 0.5 1.4 0.6 1.9

ETBE

3-METHYL-CIS-2-PENTENE 0.8 2.4 0.4 0.9 0.5 3.2

2,2-DIMETHYLPENTANE, NOTE A 1.9 4.0 0.7 3.3 1.3 18.2

METHYLCYCLOPENTANE, NOTE A 1.8 3.9 0.7 3.3 1.3 17.8

2,4-DIMETHYLPENTANE 1.8 3.5 0.7 3.0 1.6 17.3

2,2,3-TRIMETHYLBUTANE 0.4 0.9

3,4-DIMETHYL-1-PENTENE 0.5

1-METHYLCYCLOPENTENE 2.5 0.8 2.4 1.1 9.7

BENZENE 7.0 8.2 4.2 12.7 6.6 29.8

3-METHYL-1-HEXENE

3,3-DIMETHYLPENTANE 0.5 0.3 0.3 1.0 0.7

CYCLOHEXANE 1.6 2.0 0.6 2.6 3.5 16.7

2-METHYLHEXANE

2,3-DIMETHYLPENTANE 6.8 10.8 2.8 8.8 5.1 34.6

1,1-DIMETHYLCYCLOPENTANE

TERT-AMYL METHYL ETHER

CYCLOHEXENE

3-METHYLHEXANE 3.9 7.2 1.9 5.8 3.4 18.3

CIS-1,3-DIMETHYLCYCLOPENTANE 0.7 1.1 0.7 4.0

3-ETHYLPENTANE 0.8 0.7 0.6 5.9

TRANS-1,2-DIMETHYLCYCLOPENTANE

TRANS-1,3-DIMETHYLCYCLOPENTANE 0.5 0.7 0.5 0.7 3.4

1-HEPTENE

2,2,4-TRIMETHYLPENTANE 4.4 8.5 2.2 8.9 3.7 28.2

2-METHYL-1-HEXENE 0.8

TRANS-3-HEPTENE

HEPTANE 4.3 5.4 2.7 6.7 4.2 16.6

CIS-3-HEPTENE

UNIDENTIFIED C7 1.5 0.9

2-METHYL-2-HEXENE

3-METHYL-TRANS-3-HEXENE

TRANS-2-HEPTENE 0.3 0.6 0.7

3-ETHYL-CIS-2-PENTENE

2,4,4-TRIMETHYL-1-PENTENE 0.5 0.8 0.4 0.7 1.2

2,3-DIMETHYL-2-PENTENE

CIS-2-HEPTENE 0.4 0.4

METHYLCYCLOHEXANE 2.3 2.2 0.9 2.5 1.9 9.6

CIS-1,2-DIMETHYLCYCLOPENTANE

2,2-DIMETHYLHEXANE

1,1,3-TRIMETHYLCYCLOPENTANE 0.3 0.3 1.4 0.8

2,4,4-TRIMETHYL-2-PENTENE

2,2,3-TRIMETHYLPENTANE 0.7 1.0 0.3 0.6 7.1

2,5-DIMETHYLHEXANE

ETHYLCYCLOPENTANE

2,4-DIMETHYLHEXANE 0.3 0.6 3.9

1-TRANS-2-CIS-4-TRIMETHYLCYCLOPENTANE 0.5 0.4 0.5

3,3-DIMETHYLHEXANE

1-TRANS-2-CIS-3-TRIMETHYLCYCLOPENTANE

PAGE B-17
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 8/19/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

2,3,4-TRIMETHYLPENTANE 3.9 4.9 1.4 3.3 2.2 10.8

2,3,3-TRIMETHYLPENTANE 1.7 0.7 2.4 12.4

TOLUENE 28.7 18.2 17.2 38.9 29.7 51.7

2,3-DIMETHYLHEXANE 5.4 6.3

1,1,2-TRIMETHYLCYCLOPENTANE

2-METHYLHEPTANE

3,4-DIMETHYLHEXANE, NOTE B

4-METHYLHEPTANE 2.1 2.7 1.0 2.5 1.0 6.7

3-METHYLHEPTANE 2.5 2.8 1.1 2.0 1.7 6.7

1-CIS,2-TRANS,3-TRIMETHYLCYCLOPENTANE

CIS-1,3-DIMETHYLCYCLOHEXANE

TRANS-1,4-DIMETHYLCYCLOHEXANE

3-ETHYLHEXANE

2,2,5-TRIMETHYLHEXANE 1.3 1.3 0.4 0.9 1.0 4.2

TRANS-1-METHYL-3-ETHYLCYCLOPENTANE

CIS-1-METHYL-3-ETHYLCYCLOPENTANE 0.3 0.3 0.4

1,1-DIMETHYLCYCLOHEXANE

TRANS-1-METHYL-2-ETHYLCYCLOPENTANE

1-METHYL-1-ETHYL-CYCLOPENTANE

2,4,4-TRIMETHYLHEXANE

2,2,4-TRIMETHYLHEXANE

TRANS-1,2-DIMETHYLCYCLOHEXANE

1-OCTENE

TRANS-4-OCTENE

OCTANE 1.8 1.7 0.8 1.9 2.1 4.2

UNIDENTIFIED C8 0.4 0.3 1.6

TRANS-2-OCTENE

TRANS-1,3-DIMETHYLCYCLOHEXANE, NOTE C

CIS-2-OCTENE 0.9

ISOPROPYLCYCLOPENTANE

2,2-DIMETHYLHEPTANE

2,3,5-TRIMETHYLHEXANE 0.4

CIS-1-METHYL-2-ETHYLCYCLOPENTANE

2,4-DIMETHYLHEPTANE 1.7 0.4

4,4-DIMETHYLHEPTANE

CIS-1,2-DIMETHYLCYCLOHEXANE

ETHYLCYCLOHEXANE

2,6-DIMETHYLHEPTANE, NOTE D 0.6 0.7 0.3 1.1 1.0

1,1,3-TRIMETHYLCYCLOHEXANE

2,5-DIMETHYLHEPTANE, NOTE E 0.4 0.4 0.6 0.9

3,3-DIMETHYLHEPTANE

3,5-DIMETHYLHEPTANE, NOTE E

ETHYLBENZENE 6.0 5.7 3.6 6.7 6.3 8.0

2,3,4-TRIMETHYLHEXANE

2,3-DIMETHYLHEPTANE

m-& p-XYLENE 17.4 14.6 9.6 21.4 18.1 23.7

4-METHYLOCTANE

3,4-DIMETHYLHEPTANE

4-ETHYLHEPTANE

2-METHYLOCTANE 0.7 0.6 0.8

3-METHYLOCTANE 0.7 0.6 0.7

STYRENE

PAGE B-18
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 8/19/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

o-XYLENE 7.0 5.7 3.1 8.3 6.2 8.5

1-NONENE

TRANS-3-NONENE 0.7

CIS-3-NONENE

NONANE 0.3 0.4

TRANS-2-NONENE

ISOPROPYLBENZENE (CUMENE) 0.4

2,2-DIMETHYLOCTANE

2,4-DIMETHYLOCTANE 0.5

n-PROPYLBENZENE 0.7 0.3

1-METHYL-3-ETHYLBENZENE 2.6

1-METHYL-4-ETHYLBENZENE

1,3,5-TRIMETHYLBENZENE 0.8

1-METHYL-2-ETHYLBENZENE 0.3 0.3 1.1 0.9

1,2,4-TRIMETHYLBENZENE

TERT-BUTYLBENZENE

1-DECENE

DECANE, NOTE F 0.3 1.6 1.0 0.8

ISOBUTYLBENZENE, NOTE F 0.3 1.5 0.9 0.7

1,3,-DIMETHYL-5-ETHYLBENZENE

METHYLPROPYLBENZENE (sec butylbenzene)

1-METHYL-3-ISOPROPYLBENZENE 2.6

1,2,3-TRIMETHYLBENZENE

1-METHYL-4-ISOPROPYLBENZENE

INDAN

1-METHYL-2-ISOPROPYLBENZENE 1.5

1,3-DIETHYLBENZENE

1,4-DIETHYLBENZENE

1-METHYL-3-N-PROPYLBENZENE

1-METHYL-4-N-PROPYLBENZENE, NOTE G

1,2 DIETHYLBENZENE

1-METHYL-2-N-PROPYLBENZENE 2.4 0.6

1,4-DIMETHYL-2-ETHYLBENZENE 0.3

1,3-DIMETHYL-4-ETHYLBENZENE

1,2-DIMETHYL-4-ETHYLBENZENE 0.6

1,3-DIMETHYL-2-ETHYLBENZENE

UNDECANE

1,2-DIMETHYL-3-ETHYLBENZENE

1,2,4,5-TETRAMETHYLBENZENE

2-METHYLBUTYLBENZENE (sec AMYLBENZENE)

3,4 DIMETHYLCUMENE

1,2,3,5-TETRAMETHYLBENZENE

TERT-1-BUT-2-METHYLBENZENE

1,2,3,4-TETRAMETHYLBENZENE

N-PENT-BENZENE 0.5

TERT-1-BUT-3,5-DIMETHYLBENZENE

TERT-1-BUTYL-4-ETHYLBENZENE 0.6

NAPHTHALENE

DODECANE

1,3,5-TRIETHYLBENZENE

1,2,4-TRIETHYLBENZENE

HEXYLBENZENE

PAGE B-19
HYDROCARBON SPECIATION DATA

SHED TEST

TOYOTA CAMRY

SHED results, mg

TC-4614-S TC-4614-M TC-4637-S TC-4637-M TC-4640-S TC-4640-M

COMPOUND 8/19/2002 8/20/2002 8/2/2002 8/9/2002 8/14/2002 8/15/2002

Houston Fuel Atlanta Fuel Chicago Fuel

UNIDENTIFIED C9-C12+ 0.4 4.7 4.8 0.5

*C1 - C4 DATA NOT AVAILABLE DUE TO INSTRUMENT MALFUNCTION

A - 2,2-Dimethylpentane and methylcyclopentane co-elute. GC peak area split equally between the two compounds.

B - 3-Methyl-3-ethyl-pentane co-elutes with reported compound. Not reported separately.

C - Cis-1,4-Dimethylcyclohexane co-elutes with reported compound. Not reported separately.

D - Propylcyclopentane co-elutes with reported compound. Not reported separately.

E - 2,5-Dimethylheptane and 3,5-dimethylheptane co-elute. GC peak area split equally between the two compounds.

F - Decane and isobutylbenzene co-elute. GC peak area split equally between the two compounds.

G - n-Butylbenzene co-elutes with reported compound. Not reported separately.

H - Isobutyraldehyde and methyl ethyl ketone co-elute. LC peak area split equally between the two compounds.

PAGE B-20