The fuel economy data obtained from the emission tests run by the U.S. Environmental Protection Agency (EPA) have been used to show passenger car fuel economy trends from model year 1957 to present. This paper adds the 1975 model year to the historical trend and concentrates on comparisons between the 1975 to 1974 models. The net change in fuel economy for the fleet has been estimated at plus 13.8% comparing the 1975 models to the 1974 models assuming no model mix change occurs. General Motors is responsible for the majority of the fleet average improvement.

  • Corporate Authors:

    Society of Automotive Engineers

    485 Lexington Avenue
    New York, NY  United States  10017
  • Authors:
    • Austin, T C
    • Hellman, K H
  • Publication Date: 1974-10

Media Info

  • Pagination: 25 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00084971
  • Record Type: Publication
  • Report/Paper Numbers: SAE Paper #750970
  • Files: TRIS
  • Created Date: May 1 1975 12:00AM