LABORATORY TECHNIQUES FOR EVALUATION OF ENGINE OIL EFFECTS ON FUEL ECONOMY

Test methods to evaluate the effect of engine oil formulations on fuel economy were investigated using various experimental and commercial oils. A series of laboratory tests, including a motor-driven engine, a single-cylinder engine generator, and several automotive engines on dynamometer stands, was employed to evaluate 11 oils. Oils tested in the motor-driven engine showed reduced power requirements for low viscosity oils at low temperatures and for friction-reducing additives at high temperatures. The single-cylinder engine generator exhibited a trend toward improved fuel economy with friction-reducing additive. Automotive engine dynamometer tests, run at several operating conditions, demonstrated fuel economy improvements for low viscosity oils and for oils containing friction-reducing additives. Data from vehicles tested on an all-weather chassis dynamometer provided an excellent simulation of field service. Laboratory test procedures correlated well with results obtained in the chassis dynamometer. Supporting test data are provided in appendices.

  • 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:
    • Passut, C A
    • Kollman, R E
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00396322
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 780601, HS-025 519U
  • Files: HSL, USDOT
  • Created Date: Aug 31 1985 12:00AM