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Advanced Test Methods Aid in Formulating Engine Oils for Fuel Economy
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 17, 2016 by SAE International in United States
Annotation ability available
Chassis dynamometer tests are often used to determine vehicle fuel economy (FE). Since the entire vehicle is used, these methods are generally accepted to be more representative of ‘real-world’ conditions than engine dynamometer tests or small-scale bench tests. Unfortunately, evaluating vehicle fuel economy via this means introduces significant variability that can readily be mitigated with engine dynamometer and bench tests.
Recently, improvements to controls and procedures have led to drastically improved test precision in chassis dynamometer testing. Described herein are chassis dynamometer results from five fully formulated engine oils (utilizing improved testing protocols on the Federal Test Procedure (FTP-75) and Highway Fuel Economy Test (HwFET) cycles) which not only show statistically significant FE changes across viscosity grades but also meaningful FE differentiation within a viscosity grade where additive systems have been modified. Demonstration of statistically significant differentiation of fuel economy within a viscosity grade is a result of both robust additive technology and high test precision. Furthermore, the work demonstrates that with the specific vehicle and test cycle used, it is possible to obtain the fuel economy performance level of a 0W-16 with a 5W-30 containing a proprietary organic friction modifier (FM).
|Technical Paper||A Synthesized Engine Oil Providing Fuel Economy Benefits|
|Technical Paper||The Performance of Fuel-Saving Engine Oils|
CitationMorgan, P., Michlberger, A., Kocsis, M., Gieselman, M. et al., "Advanced Test Methods Aid in Formulating Engine Oils for Fuel Economy," SAE Technical Paper 2016-01-2269, 2016, https://doi.org/10.4271/2016-01-2269.
- Simpson , B. Improving the Measurement of Chassis Dynamometer Fuel Economy SAE Technical Paper 750002 1975 10.4271/750002
- Tung , S. and Tseregounis , S. An Investigation of Tribological Characteristics of Energy-Conserving Engine Oils Using a Reciprocating Bench Test SAE Technical Paper 2000-01-1781 2000 10.4271/2000-01-1781
- Consortium to Develop a New Sequence VID Fuel Efficiency Test for Engine Oils Final Report October 15 2008 ftp://ftp.astmtmc.cmu.edu/docs/gas/sequencevi/minutes/VID%20ConsortiumMatrixInfo/VID%20Consortium/Final%20Report%2010-16-08.pdf
- Blanks , M. and Forster , N. Technical Approach to Increasing Fuel Economy Test Precision with Light Duty Vehicles on a Chassis Dynamometer SAE Technical Paper 2016-01-0907 2016 10.4271/2016-01-0907
- Boffa , A. and Hirano , S. Oil Impacts on Sequence VIB Fuel Economy SAE Technical Paper 2001-01-1903 2001 10.4271/2001-01-1903
- Akiyama , K. , Ueda , F. , Miyake , J. , Tasaka , K. et al. Fuel Economy Performance of the Highly Efficient Fuel Economy Oils Using Chassis Dynamometer Test SAE Technical Paper 932690 1993 10.4271/932690
- Styer , J. and Guinther , G. Fuel Economy Beyond ILSAC GF-5: Correlation of Modern Engine Oil Tests to Real World Performance SAE Int. J. Fuels Lubr. 5 3 1025 1033 2012 10.4271/2012-01-1618
- Dickinson , H. Fuel Economy OF Automotive Engines SAE Technical Paper 190014 1919 10.4271/190014
- Gangopadhyay , A. , Sorab , J. , Willermet , P. , Schriewer , K. et al. Prediction of ASTM Sequence VI and VIA Fuel Economy Based on Laboratory Bench Tests SAE Technical Paper 961140 1996 10.4271/961140
- Pomeroy , L. Mechanical Friction as Affected by the Lubricant SAE Technical Paper 240009 1924 10.4271/240009
- Dohner , B. , Umehara , H. , Kaneko , T. , and Yamashita , M. Development of Novel Friction Modifier Technology Part 2: Vehicle Testing SAE Technical Paper 2011-01-2126 2011 10.4271/2011-01-2126
- Kenbeek , D. , Buenemann , T. , and Rieffe , H. Review of Organic Friction Modifiers - Contribution to Fuel Efficiency? SAE Technical Paper 2000-01-1792 2000 10.4271/2000-01-1792
- Sorab , J. , Korcek , S. , and Bovington , C. Friction Reduction in Lubricated Components Through Engine Oil Formulation SAE Technical Paper 982640 1998 10.4271/982640
- Park , S. , Cho , Y. , Sung , K. , and Han , N. The Effect of Viscosity and Friction Modifier on Fuel Economy and the Relationship Between Fuel Economy and Friction SAE Int. J. Fuels Lubr. 2 2 72 80 2010 10.4271/2009-01-2662
- 40 CRF 600.208-12 Calculation of FTP-based and HFET-based fuel economy, CO2 emissions, and carobon-related exhaust emissions for a model type, 76 FR39552 July 6 2011 https://www.gpo.gov/fdsys/pkg/CFR-2015-title40-vol30/pdf/CFR-2015-title40-vol30-sec600-208-12.pdf