ANTIOXIDANT DECAY IN ENGINE OILS DURING LABORATORY TESTS AND LONG DRAIN INTERVAL SERVICE

A new method for the determination of antioxidant capacity in lubricants has been utilized for the analyses of new and used engine oil samples. The results derived from these analyses were used for monitoring the antioxidant decay during laboratory and long drain fleet testing and in various correlation studies. The application of the method provided new insights into the nature of the oxidative deterioration of engine oils as a function of type and initial concentration of antioxidant additives, of type of base oil and of test or engine severity.

• Supplemental Notes:
  • From the 11-13 November 1978 Meeting.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Korcek, S
  • Mahoney, L R
  • JOHNSON, M D
  • Hoffmann, S
• Publication Date: 1978

Media Info

• Features: References;
• Pagination: 10 p.
• Serial:
  • Society of Automotive Engineers Preprint
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Additives; Antioxidants; Deterioration; Engine oils; Laboratory tests; Lubricants; Lubricating oils; Oil changing; Oxidation; Vehicle power plants
• Old TRIS Terms: Automobile engines; Extended oil-drain intervals
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00195266
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE 780955
• Files: TRIS
• Created Date: Aug 15 1979 12:00AM