Browse Publications Technical Papers 2002-01-2877
2002-10-21

Testing of the Toyota Avensis DPNR at U.S. EPA-NVFEL 2002-01-2877

An advanced prototype of the Toyota Avensis light-duty diesel vehicle equipped with a version of Toyota's DPNR exhaust emission control system was tested at the U.S. EPA - NVFEL facility. The vehicle is under development by Toyota Motor Corporation for introduction in Europe. While this particular model is not anticipated to be offered for sale in the U.S., EPA evaluated the vehicle to gauge the current state of light-duty diesel vehicle technology. The vehicle was tested using a low sulfur (6 ppm) diesel fuel with a cetane number that was improved to near typical European levels (∼50 cetane). Emission levels over the FTP75 consistent with U.S. Federal Light-Duty Tier 2 emission standards were achieved at levels of fuel economy that are competitive with current light-duty diesel passenger vehicles offered for sale in the U.S. The vehicle was tested with relatively low accumulated mileage. Further testing at 50,000-120,000 accumulated miles will be necessary to determine the long-term durability of the emission control system.

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