FUNDAMENTAL EVALUATION OF FUEL-EFFICIENT ENGINE OILS

Fundamental laboratory tests on fuel-efficient engine oils were run to study how to select base oils and friction modifiers. Reliability of those oils was evaluated on the engine through tests on fuel economy, valve train wear, detergency, etc. The 7.5W-30 (the viscosity of 18 poise or lower in the range of SAE viscosity grade 10 W is rated as 7.5 W in Japan; 7.5W-30 corresponds to 10W-30 in SAE J300 standards) having suitable base oils and blended with some friction modifier exhibited 3% fuel saving in the Japanese 10-mode fuel economy test as compared with a 10W-40 oil containing no friction modifier. It was also observed that possible negative effects of a viscosity-reduced and friction-modified oil, such as increase in wear, corrosion and oil consumption, decreased detergency, and catalyst deterioration by P poisoning, can be eliminated by oil formulation (selection of base oils and friction modifiers). (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14775360
• Corporate Authors:

  Inderscience Enterprises Limited

  World Trade Center Building, 110 Avenue Louis Casai
  Geneva,   Switzerland 
• Authors:
  • Tsukawaki, Y
  • Iwamoto, S
  • Nishiyama, A
  • Tanioka, T
• Publication Date: 1984-7

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 438-450
• Serial:
  • International Journal of Vehicle Design
  • Volume: 5
  • Issue Number: 4
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1477-5360
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJVD

Subject/Index Terms

• TRT Terms: Corrosion; Detergents; Engine oils; Friction materials; Fuel consumption; Laboratory tests; Lubricating oils; Machine valves; Oil additives; Technology; Viscosity; Wear
• Uncontrolled Terms: Friction modifiers
• Geographic Terms: Japan
• Old TRIS Terms: Oil consumption; Valve trains
• ITRD Terms: 8513: Classification; 9009: Decrease; 5452: Friction; 6237: Laboratory (not an organization); 3839: Lubrication; 9047: Mixture; 9048: Modification; 4961: Oil; 6255: Test; 5936: Viscosity
• Subject Areas: Energy; Geotechnology; Highways; Materials; Public Transportation;

Filing Info

• Accession Number: 00393909
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: HS-037 732
• Files: HSL, ITRD, TRIS
• Created Date: Jun 30 1985 12:00AM