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Development of 5W-30 GF-4 Fuel-saving Engine Oil for DLC-coated Valve Lifters
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 23, 2007 by SAE International in United States
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Molybdenum friction modifiers are commonly added to engine oils to reduce friction. The application of diamond-like carbon (DLC) coatings to engine parts to reduce friction is also being examined for improving fuel efficiency. However, molybdenum friction modifiers are not effective when used with DLC coatings. This paper describes a new 5W-30 GF-4 fuel-saving engine oil that has been developed with an ashless friction modifier for use with non-coated or DLC-coated valve lifters.
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CitationOkuda, S., Dewa, T., and Sagawa, T., "Development of 5W-30 GF-4 Fuel-saving Engine Oil for DLC-coated Valve Lifters," SAE Technical Paper 2007-01-1979, 2007, https://doi.org/10.4271/2007-01-1979.
- Sagawa T. et al. Development of 0W-20 ILSAC GF-3 Gasoline Engine Oil SAE 2002-01-1636 2002
- Akiyama K. et al. Retention of Friction Reduction Performance of MoDTC-Containing Fuel Efficient Gasoline Engine Oils during Use SAE 2000-01-2053 2000
- Takanaka H. et al. The Effect of 0W-20 Low Viscosity Engine Oil on Fuel Economy SAE 1999-01-3468 1999
- The ILSAC GF-4 STANDARD FOR PASSENGER CAR ENGINE OILS 2004
- Ueno T. Hamada T. Kano M. Nakamura K. Summaries of Tribology Conference Japanese Society of Tribologists Tottori 2004-11 561
- Okuda S. Sagawa T. Kubo T. Nanao H. Minami I. Mori S. “Investigation of tribo-chemistry using stable isotopic tracers: Mechanism of low friction of DLC lubricated by friction modifiers” Japan 2006-10
- Matta Christine De Barros Bouchet Maria-Isabel Le Mogne Thierry Vacher Beatrice Martin Jean-Michel Okuda S. Sagawa T. Kano M. “Improved Boundary Lubrication With Glycerol-Diamond Like Carbon Technology” Japan 2006-10
- American Society for Testing and Materials “Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVA Spark-Ignition Engine” ASTM D6891-05
- Rounds F. G. “Soots from Used Diesel Engine Oils- Their Effects on Wear as Measured in 4-Ball Wear Tests” SAE 810499
- Katafuchi T. Fujita H. “Effect of soot for lubrication characteristics in diesel engine oil (in Japanese)” Japanese Society of Tribologist, Tribology conference 1990 October
- Japanese Automobile Standards Organization “Low and Medium Temperature Detergency Test Procedure for Evaluating Automobile Gasoline Engine Oils” JASO M 331-91