FUEL ECONOMY IMPROVEMENTS IN EPA AND ROAD TESTS WITH ENGINE OIL AND REAR AXLE LUBRICANT VISCOSITY REDUCTION

Effects of reducing engine oil and rear axle lubricant viscosities on fuel economy were determined in EPA combined City and Highway (EPA 55/45) tests and in road tests, using four different sized cars. In EPA 55/45 tests, fuel economy rating improvements averaged about 1.5 percent; warmed-up and cold-start road test fuel economy improvements averaged about 4 and 8 percent, respectively. /GMRL/

  • Availability:
  • Supplemental Notes:
    • Presented at SAE Passenger Car Meeting, Troy, Michigan, 5-9 June 1978.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Goodwin, M C
    • Haviland, M L
  • Publication Date: 1978-6

Media Info

  • Features: References;
  • Pagination: 22 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00183072
  • Record Type: Publication
  • Report/Paper Numbers: SAE 780596, HS-025 516U
  • Files: HSL, TRIS
  • Created Date: Dec 12 1985 12:00AM