A fuel economy track test comparing two experimental oils to two commercial fuel-efficient engine oils was conducted in 1978 compact sedans. Three of the test lubricants consistently provided a significant decrease in fuel consumption compared to one of the commercial fuel-efficient lubricants. All four test lubricants provided the most improvement in fuel economy after the first 2400 km (1500 mile). An experimental formulation from the track test was used as a reference to explore the effects of performance additive, viscosity improver, and viscosity grade on fuel economy. The comparisons were made in different makes of cars using modified EPA fuel economy procedures. Performance additive and viscosity improver selection directionally reduced fuel consumption in the test cars. The response to viscosity grade changes was not consistent among the test vehicles.

  • Supplemental Notes:
    • From the Meeting held 26 February-2 March 1979.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Riester, J E
    • Chamberlin, W B
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00197195
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 790213 Conf Paper
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM