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Parameters by Reporting Year (1997-2005)

Conventional Gasoline Parameters by Reporting Year (1997-2005) 

Note: This information is based on individual RFG & Anti-Dumping Batch Reports from 

Importers and Domestic Refiners. California gasolines are not represented in this data. This 

information is derived from report data and was not measured directly by EPA. 

Each parameter value is a volume weighted average calculated when a volume and a 

parameter were both reported - parameter values are not typical for the total volumes listed. 

RFG volumes may not account for oxygenates added downstream. Parameter averages were 

compiled individually and may be subject to errors in reporting. 

The Oxygen(wt%) average values were calculated only when an Oxygen(wt%) value greater 

than zero was reported. All Oxygenate(vol%) values (MTBE, Methanol, Ethanol, ETBE, etc.) 

were calculated as a group based on the presence of a reported value for Oxygen(wt%) that 

was greater than zero. 

Averaged Summertime Parameters 1997 1998 1999 2000 2001 2002 2003 2004 2005 

Volume (gal) 38,690,157,870 39,072,967,866 39,022,783,372 38,259,085,137 38,995,921,017 40,794,023,525 43,360,443,576 43,036,326,249 40,903,742,586

Oxygen(Wt%) 0.27 0.65 0.72 0.66 0.63 0.71 0.81 0.97 0.95

API Gravity 58.2 58.1 58.2 57.7 57.5 57.7 57.3 58.1 58.4

Methanol(%Vol) 0.00 0.01 0.00 0.01 0.01 0.01 0.01 0.00 0.00

MTBE(%Vol) 1.08 1.91 1.81 1.62 1.73 1.73 2.18 2.19 1.66

Ethanol(%Vol) 0.10 0.59 0.84 0.84 0.74 0.93 0.98 1.52 1.75

ETBE(%Vol) 0.00 0.00 0.00 0.01 0.01 0.00 0.04 0.05 0.02

TAME(%Vol) 0.06 0.23 0.13 0.24 0.28 0.34 0.23 0.20 0.19

T-Butanol(%Vol) 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.00

Sulfur(ppm) 324 304 309 320 304 296 303 118 106

Aromatics(%Vol) 27.2 27.4 27.6 28.5 28.3 28.0 27.9 28.0 27.7

Olefins(%Vol) 12.5 11.5 11.8 11.8 12.8 12.1 12.1 11.2 12.0

Benzene(%Vol) 1.13 1.14 1.15 1.15 1.17 1.10 1.15 1.15 1.21

RVP(psi) 8.67 8.32 8.32 8.27 8.27 8.27 8.31 8.31 8.30

T50(F) 211.9 212.3 211.6 211.9 212.5 213.8 213.0 212.7 211.1

T90(F) 337.4 336.3 334.3 335.6 333.5 335.0 335.7 334.7 330.7

E200 45.2 44.8 45.2 45.2 45.2 45.0 45.2 45.2 45.7

E300 80.9 80.9 81.1 80.7 81.1 80.6 80.7 80.7 81.7

Averaged Wintertime Parameters 1997 1998 1999 2000 2001 2002 2003 2004 2005 

Volume (gal) 41,270,507,017 46,205,223,148 47,518,276,313 48,297,189,313 49,075,905,949 49,720,200,931 47,985,831,528 47,701,194,240 47,832,739,279

Oxygen(Wt%) 0.19 0.72 0.74 0.74 0.77 0.73 0.83 1.07 1.08

API Gravity 61.3 61.5 61.4 61.4 60.8 61.0 60.7 61.8 61.9

Methanol(%Vol) 0.00 0.01 0.00 0.00 0.01 0.01 0.01 0.00 0.00

MTBE(%Vol) 0.69 1.97 1.78 1.39 1.54 1.38 1.50 1.86 1.41

Ethanol(%Vol) 0.03 0.81 0.99 1.19 1.24 1.20 1.48 1.94 2.19

ETBE(%Vol) 0.00 0.00 0.00 0.01 0.01 0.00 0.01 0.02 0.04

TAME(%Vol) 0.03 0.23 0.11 0.15 0.19 0.27 0.18 0.19 0.18

T-Butanol(%Vol) 0 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.00

Sulfur(ppm) 319 287 307 293 295 292 256 120 97

Aromatics(%Vol) 25.0 24.7 24.9 24.8 25.4 25.0 24.9 24.6 24.7

Olefins(%Vol) 12.2 11.2 11.4 12.0 12.5 11.8 11.5 11.4 11.6

Benzene(%Vol) 1.15 1.08 1.08 1.08 1.14 1.07 1.10 1.08 1.15

RVP(psi) 12.00 12.19 12.12 12.06 11.97 12.04 12.15 12.21 12.12

T50(F) 198.0 199.6 199.7 199.0 202.1 201.4 200.1 199.8 199.9

T90(F) 328.7 327.7 328.2 325.5 327.2 327.2 328.7 326.5 324.1

E200 50.4 50.2 50.1 50.4 49.9 50.2 50.4 50.8 50.9

E300 83.3 83.3 83.1 83.4 83.3 83.2 83.0 83.4 84.1

Reformulated Gas

http://www.epa.gov/otaq/regs/fuels/rfg/properf/cg-params.htm

Last updated on Tuesday, September 04, 2007

Conventional Gasoline Parameters by Reporting Year (1997-2005) | Reformulated Gas | US EPA Page 1 of 1