Olefin oligomer/organic ester blends were selected as the synthesized base stocks for the two synthesized commercial engine oils discussed in this paper. These two fluids were selected for extensive evaluation after screening countless other possibilities. The first oil (Syn A) is an SAE 10W-30 product formulated without a VI improver to provide absolute shear stability. The second oil (Syn B) is an SAE 5W-30 product formulated to achieve significant fuel economy benefits. This oil contains a small quantity of a highly shear stable VI improver. A variety of standard and extended duration diesel performance tests were conducted, including API and CD tests. Findings show Syn B to be superior to Syn A in terms of fuel economy benefits and cold-temperature starts, but both synthetics are better than most widely used mineral oils. Extended drain capability and high temperature stability and compatability with current lubricants and engine seals are characteristics of both synthetics.

  • Supplemental Notes:
    • Presented at the SAE Congress and Exposition, Detroit, 27 February-3 March 1978.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Hetrick, S S
    • Keller, J A
    • Lowther, H V
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00180080
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 780183 Preprint, HS-025 330U
  • Files: HSL, TRIS
  • Created Date: Oct 12 1985 12:00AM