NOTICE

This technical report does not necessarily represent final EPA decisions or positions. It is intended to present technical analysis of issues using data that are currently available. The purpose in the release of such reports is to facilitate the exchange of technical information and to inform the public of technical developments. Assessment and Standards Division Office of Transportation and Air Quality U.S. Environmental Protection Agency

National Renewable Energy Laboratory U.S. Department of Energy

Coordinating Research Council 

# EPAct/V2/E

- 89: Assessing the Effect of Five Gasoline Properties on Exhaust Emissions from Light

- Duty Vehicles

Certified to Tier 2 Standards

Final Report on Program Design and

Data Collection

Appendix J Refueling Location Experiments

E PA-420-R-13-004 April 2013J-2 For each chosen vehicle SwRI conducted the fuel change sequence given in Table J -1. This sequence was based on what was used during the conduct of Phase 3 testing, and should be representative of the actual Phase 3 test procedure. For each vehicle, the sequence was conducted at each of two refueling locations using the same pair of E20 and E0 fuels. The refueling locations used for each chosen vehicle are given in Table J

- 2. A schematic of the refueling locations is given in Figure J

- 1. All fuel samples were collected approximately half way through each drainJ-3 TABLE J

- 1. FUEL CHANGE SEQUENCE

STEP DESCRIPTION REQUIRED SAMPLE

ANALYSES

1 Collect fuel sample from vehicle while draining fuel via

fuel rail. Density @ 60°F by D4052 Ethanol concentration by D5599 Ethanol concentration by Petrospec

2 Fill fuel tank to 40% with designated E20 Group 1 fuel.

Fill

- up fuel temperature must be less than 50°F.

3 Start vehicle and execute catalyst sulfur removal procedure described in Appendix C of CRC E -60 Program report. Apply side fan cooling to the fuel tank

to alleviate the heating effect of the exhaust system.

4 Collect fuel sample from vehicle while draining fuel via

fuel rail. Density @ 60°F by D4052 Ethanol concentration by D5599 Ethanol concentration by Petrospec

5 Fill fuel tank to 40% with designated E20 Group 1 fue l.

Fill -up fuel temperature must be less than 50°F.

6 Perform three 2

- phase (bags 1 and 2) LA92 cycles. During these prep cycles, apply side fan cooling to the fuel tank to alleviate the heating effect of the exhaust

system.

7 Collect fuel sample from vehicle while draining fuel via

fuel rail. Density @ 60°F by D4052 Ethanol concentration by D5599 Ethanol concentration by Petrospec

8 Fill fuel tank to 40% with designated E0 Group 2 fuel.

Fill

- up fuel temperature must be less than 50°F.

9 Start vehicle and execute catalyst sulfur removal procedure described in Appendix C of CRC E -60 Program report. Apply side fan cooling to the fuel tank to alleviate the heating effect of the exhaust system.

10 Collect fuel sample from vehicle while draining f uel via

fuel rail. Density @ 60°F by D4052 Ethanol concentration by D5599 Ethanol concentration by Petrospec

11 Fill fuel tank to 40% with designated E20 Group 2 fuel.

Fill

- up fuel temperature must be less than 50°F.

12 Perform three 2

- phase (bags 1 and 2) LA92 cycles. During these prep cycles, apply side fan cooling to the fuel tank to alleviate the heating effect of the exhaust

system.

13 Collect fuel sample from vehicle while draining fuel via

fuel rail. Density @ 60°F by D4052

Ethanol concentra tion by D5599 Ethanol concentration by PetrospecJ-4 CONTAINMENT

PAD LARGE BOX

SMALL BOX

SOUTH

LOCATION NORT H

LOCATION TABLE J

- 2. REFUELING LOCATIONS

BRAND MODEL LOCATION A LOCATION B

Chevrolet C1500 Silverado Containment Pad South Toyota Camry Containment Pad South Toyota Sienna Containment Pad South Dodge Caliber Containment Pad South

Honda Civic Containment Pad South

Honda Odyssey Containment Pad South

Nissan Altima Containment Pad South

FIGURE J

- 1. SCHEMATIC OF VEHICLE REFUELING LOCATIONS