>>SmartWay Transport Partnership U.S. ENVIRONMENTAL PROTECTION AGENCY Sum may of SmartWay Tractor ft Trailer Program U.S. Environmental Protection Agency Certified SmartWay trac- tors and trailers are a new genera- with cleaner, fuel-saving features. SmartWay tractors and trailers can achieve fuel savings of 10 to 20 percent (saving car- riers between 1,700 and 3,300 gallons of diesel fuel annually), lower greenhouse-gas emissions, and significantly reduce oxides of nitrogen, particulate matter, and other air pollutants. This is an EPA document describ- ing how the Joint TMC/SAE Fuel Consumption Test Procedure - Type II (SAEJI32I Surface Vehicle Recommended Practice (October, 1986) can be adapted as an interim test method to quantify the fuel consumption impact of fuel-saving equipment for the purpose of deter- mining eligibility for inclusion in SmartWay. Interim Test Method for Verifying Fuel-Saving Components for SmartWay: Modifications to SAE JI32I Description of Interim Test Method The Joint TMC/SAE Fuel Consumption Test Procedure - Type II (SAE J1321 Surface Vehicle Recommended Practice (October, 1986) is modified by adding the following provisions: 1. Test must be conducted on a test track, not a roadway. 2. Test track length > 1.5 miles (5 miles recommended). 3. Track must be circular, figure eight, or oval in shape. 4. Track surface must be completely dry and well-maintained; surface typical of highway surfaces (asphalt or cement). 5. Grade change on test track not greater than 2 degrees. 6. Altitude of test facility not greater than 4,000 feet above sea level. 7. No precipitation on the test track for duration of test. 8. Temperatures at the test track must be 68 - 86 F for duration of test. 9. Wind speed at the test track cannot exceed 12 mph for duration of test. 10. Wind gusts at the test track cannot exceed 15 mph for duration of test. 11. Top speed of test drive cycle not to exceed 65 mph. 12. Test trailer configuration must be a typical dry box semi-trailer, 53' long, 102" wide, and 13'6" high. 13. Trailers must be the same model and similar age, mileage and condition. 14. Each trailer must have the same test payload. The combined weight of the trailer and payload must be approximately 46,000 pounds, +/- 500 pounds. 15. Test payload must be loaded over axle to be consistent with federal bridge laws. Payload must be secured so it does not shift during the test. 16. Tires must be inflated to manufacturer-recommended maximum cold inflation pressure prior to start of test. 17. Tires must be as similar as possible in size and condition, and have accumulated at least 500 miles wear-in prior to start of test. 18. The tractor-trailer gap must as similar as possible on both pairs of trucks, as measured from the back of the tractor to the front of the trailer. 19. If testing a candidate tractor against a current SmartWay tractor model for the purpose of demonstrating SmartWay eligibility, the two tractors must have substantially similar drive train and power train configuration, including gearratio, engine horsepower and size, transmission type, lubricant type, rear axle ratio, accumulated mileage, emissions aftertreatment system, etc. 20. If testing trailer modifications or trailer aerodynamic equipment, test tractors must be equipped with features typical of line haul combination trucks- e.g., high roof fairing, side cab extender fairings, and aerodynamic profile. 21. EPA must review and approve the test plan and the vehicle configurations prior to testing. SmartWay Transport | EPA-420-F-09-046 | www.epa.gov/smartway | 734-214-4767 | smartway_transport@epa.gov ------- 22. EPA reserves the right to review all test data and to reject any test it determines was not conducted in accordance with these provisions and / or SAE J1321, or otherwise not credible according to good engineering judgment. General requirement: All provisions of SAE J1321 must be followed, in addition to the above EPA provisions. Trucks must be prepped and maintained according to SAE J1321, and results must be within SAE test minimum acceptable ratios to be a valid test. All measurement devices must be NIST-traceable. The fuel must meet all applicable ASTM standards for motor fuel for the intended application. Contact EPA Interested organizations should contact SmartWay prior to testing. To contact EPA, send an e-mail to: SmartWav-tech@epa.gov telephone the SmartWay Transport Partnership Call Center at (734) 214-4767 write to SmartWay Transport Partnership, US EPA, 2000 Traverwood, Ann Arbor, Ml 48105. If you have questions regarding SmatWay Certified Tractors and Trailers or SmartWay verified technologies, contact the SmartWay Technology Team at: SmartWav-tech@epa.gov. SmartWay Transport | EPA^120-F-09-046 | www.epa.gov/smartway | 734-214-4767 | smartway_transport@epa.gov ------- |