FIELD SERVICE COMPATIBILITY OF ASHLESS AND FULLY COMPOUNDED ENGINE OILS WITH TWO BEAD-TYPE OXIDATION CATALYSTS

Eight catalytically equipped vehicles were used to compare the effects of an ashless, nonphosphorus lubricant and a conventional SE lubricant on the deterioration of two different types of bead catalyst operating in field service. Composite CO emissions (measured by the 1975 Federal Test Procedure) approximately doubled during the 25,000--mile test with both oils relative to the fresh catalyst. No significant increase in composite HC emissions was shown. Analysis of the aged catalyst showed average phosphorus contamination of 0.08 wt % with the conventional oil compared to 0.01 wt % with the ashless oil. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Meyers, A T
• Publication Date: 1975-2

Media Info

• Pagination: 10 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Carbon monoxide; Catalysts; Deterioration; Field tests; Lubricating oils; Oils; Phosphorus
• Old TRIS Terms: Ashes
• Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors;

Filing Info

• Accession Number: 00099116
• Record Type: Publication
• Report/Paper Numbers: SAE #750448
• Files: TRIS
• Created Date: Oct 18 1975 12:00AM