Tests are described which have been conducted by the EPA on 180 new 1975 model cars (representing most of the vehicles in dealer showrooms), and which reveal, on a "sales weighted basis", that 1975 cars got 13.5 percent better mpg than the 1974 cars tested in that year. Comparisons were made from tests which consisted in running all the autos indoors on a dynamometer with a specially mixed fuel called indolene. The cars were run with varying load weights, varying speeds, and numerous stops and starts. Highway driving and city driving cycles were used. The exhaust emissions were chemically analyzed and this data was used to get miles-per-gallon data. Industry spokesmen question EPA's basic assumptions in determining mpg data, but the General Accounting Office reported to Congress that EPA be allowed to continue testing. The Federal Trade Commission, however has asked for industrial and public comments on the best method to determine fuel economy. Estimates (based on accurate statistical tests) of city and highway mileage for various models of subcompact, compact and full-size cars are tabulated.

  • Corporate Authors:

    American Automobile Association

    1712 G Street, NW
    Washington, DC  United States  20006
  • Authors:
    • BERMAN, B
  • Publication Date: 1974-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00083010
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 26 1975 12:00AM