This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Fuel Economy Gains with Modern Technology, SAE 5W-20 Engine Oils in a GM Engine as Measured in the EPA FTP Test
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 07, 2001 by SAE International in United States
Annotation ability available
Gains in fuel economy with modern technology, SAE 5W-20 engine oils (GF-3 quality) in two identical 1998 MY Buick Centuries equipped with the 3.1L engine were measured in the EPA FTP test. These oils resulted in 1.0-2.2% gains in combined fuel economy (average 1.5%) over a typical GF-2 quality SAE 5W-30 oil. No significant gains in FE were observed during the cold transient portion of the FTP test. Engine oil temperatures were also reduced by 1-2°C with the SAE 5W-20 oils compared to the SAE 5W-30 oil. Of the two test oils, the one formulated with a Mo-type friction modifier additive was about 0.5% more fuel-efficient than the one formulated with an organic-type FM additive. Of the two vehicles, the one with the inherently poorer FE performance showed higher gains (expressed as percent improvement in FE) with the SAE 5W-20 oils than the other vehicle. Potential carry-over FE effects were observed with the oil containing the organic-type FM additive, but these effects were not verified.
CitationTseregounis, S. and McMillan, M., "Fuel Economy Gains with Modern Technology, SAE 5W-20 Engine Oils in a GM Engine as Measured in the EPA FTP Test," SAE Technical Paper 2001-01-1900, 2001, https://doi.org/10.4271/2001-01-1900.
Passenger Car Lubricants and Lubrication Fundamentals
Number: SP-1624; Published: 2001-05-07
Number: SP-1624; Published: 2001-05-07
- McFall, D. “ Strong Vibes on the VIB Fuel Economy Test ” LUBES'N'GREASES 5 10 September 1999
- Bartz, W.J. “ Viscosity Influence on Friction Conditions and Fuel Economy of Automobiles - Some Basic Considerations ” SAE Technical Paper 972858
- Akiyama, K. Ueda, F. Miyake, J. Tasaka, K. Sugiyama, S. “ Fuel Economy Performance of the Highly Efficient Fuel Economy Oils Using Chassis Dynamometer Test ” SAE Technical Paper 932690
- Tanaka, H. Nagashima, T. Sato T. Kawauchi, S. “ The Effect of 0W-20 Low Viscosity Engine Oil on Fuel Economy ” SAE Technical Paper 1999-01-3468
- Tseregounis, S.I. McMillan, M.L. Olree, R.M. “ Engine Oil Effects on Fuel Economy in GM Vehicles - Separation of Viscosity and Friction Modifier Effects ” SAE Technical Paper 982502 SAE Special Publication
- Wilk, M.A. Newkirk, M.S. “ Toward Improved Fuel Economy in Passenger Car Motor Oils: An Investigation into the Influence of Detergent System and Friction Modifier as Measured by the EPA Federal Test Procedure and Highway Fuel Economy Test Cycles ” SAE Technical Paper 982505 SAE Special Publication
- Supp, J.A. Wilk, M.A. Dohner, B.R. “ An Investigation into the Effects of Viscosity Modifier and Base Oils on ASTM Sequence VIA Fuel Economy ” SAE Technical Paper 972925
- Devlin, M.T. Lam, W.Y. McDonnell, T.F. “ Comparison Of The Physical and Chemical Changes Occurring In Oils During Aging In Vehicle And Engine Fuel Economy Tests ” SAE Technical Paper 982504 SAE Special Publication
- Johnson, M.D. Jensen, R.K. Clausing, E.M. Schriewer, K. Korcek, S. “ Effects of Aging on Frictional Properties of Fuel Efficient Engine Oils ” SAE Technical Paper 952532 SAE Special Publication
- Johnson, M.D. Jensen, R.K. Korcek, S. “ Additive Interactions and Depletion Processes in Fuel Efficient Engine Oils ” SAE Technical Paper 971694 SAE Special Publication
- Johnson, M.D. McCollum, C.B. Korcek, S. Jensen, R.K. Schriewer, K. Neal, P.H. Al, P.K.S. “ Sequence VIB Engine Test for Evaluation of Fuel Efficiency of Engine Oils - Part I: Aging Procedure for Determination of Fuel Efficiency Retention ” SAE Technical Paper 982623 SAE Special Publication
- Tseregounis, S.I. McMillan, M.L. “ Engine Oil Effects on Fuel Economy in GM Vehicles - Comparison with the ASTM Sequence VI-A Engine Dynamometer Test ” SAE Technical Paper 952347 SAE Special Publication
- Wilk, M.A. June 1999