A STUDY OF THE EFFECTS OF FUEL SWITCHING ON CATALYST EQUIPPED VEHICLES

This work effort consisted of a series of emission and fuel economy tests on seven 1979 vehicles. The objectives of this effort were (1) to assess the effect of operating a catalyst equipped vehicle on commercially available leaded fuel, (2) to evaluate the emission characteristics of the vehicle at a point where gross catalytic poisoning and stabilization had occurred, (3) to examine catalyst rejuvenation efforts, and (4) to examine misfueling and rejuvenation effects on the oxygen sensor for vehicles equipped with a three-way catalyst. Each of the seven vehicles received a series of baseline tests, mileage accumulation tests using unleaded fuel, catalyst evaluation tests, mileage accumulation tests using leaded fuel and a final series of tests utilizing various combinations of fuel, catalyst status and oxygen sensor status.

• Corporate Authors:

  Automotive Testing Laboratories, Incorporated

  New Carlisle, IN  United States 

  Environmental Protection Agency

  Emission Control Technology Division, 2565 Plymounth Road
  Ann Arbor, MI  United States  48105
• Publication Date: 1980-8

Media Info

• Pagination: 220 p.

Subject/Index Terms

• TRT Terms: Automobiles; Catalytic converters; Exhaust gases; Fuel consumption; Fuels; Motor fuels; Performance evaluations; Performance tests; Switching
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00326646
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: EPA-460/3-80-023 Final Rpt.
• Contract Numbers: EPA-68-03-2693
• Files: TRIS
• Created Date: Feb 18 1981 12:00AM