ALL-YEAR COMMERCIAL OILS

A method based on apparent viscosity of engine oils at 0 degrees F measured by the cold cranking simulator to estimate minimum starting temperatures for SAE "W" numbered engine oils is described. Based on apparent viscosity measurements, a nonpolymer-containing SAE 20W-30 engine oil would satisfy 100% of gasoline or diesel engine powered fleets where temperatures are consistently above 0 degrees F. Based on climate and vehicle distribution by geographical location, about 15% of gasoline engine powered vehicles require engine oils with low-temperature properties found in SAE 5W or SAE 10W engine oils. Diesel engines using a nonpolymer-containing SAE 20W-30 engine oil would obtain the benefits of SAE 20W low-temperature starting properties and SAE 30 high-temperature protection. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Mullen, T R
  • Lendener, W J
  • Frino, M J
• Publication Date: 1974-6

Media Info

• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Climate; Diesel engines; Field tests; Methodology; Oils; Temperature; Testing; Vehicle power plants
• Old TRIS Terms: Automobile engines
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00096093
• Record Type: Publication
• Report/Paper Numbers: SAE Paper No 740524
• Files: TRIS
• Created Date: Aug 13 1975 12:00AM