CAM AND LIFTER WEAR AS AFFECTED BY ENGINE OIL ZDP CONCENTRATION AND TYPE

To determine the effects of oil additives on wear, controlled tests were run using 1972-1974 model cars, unleaded gasoline, and either SE commercial products or experimental formulations. Generally, protection from excessive wear was best provided by those oils containing predominately alkyl ZDP (zinc dithiophosphate) anti-wear additive instead of aryl ZDP. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Pless, L G
  • Rodgers, J J
• Publication Date: 1977-2-28

Media Info

• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Durability; Gasoline; Lubricating oils; Unleaded gasoline; Vehicle power plants; Zinc
• Old TRIS Terms: Automobile engines; Lead free
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00178718
• Record Type: Publication
• Report/Paper Numbers: SAE 770087
• Files: TRIS
• Created Date: Jul 29 1978 12:00AM