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Heavy-duty Engine Lubricant Fuel Economy Assessment by Available Test Methods
Technical Paper
2003-01-1960
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An investigation of lubricant related fuel economy with two commercially available heavy-duty engine oils was performed using test methods that are currently available to the industry. The SAE J1321 on-highway fuel economy test procedure was utilized in a fleet of four heavy-duty trucks. Fuel economy benefit was defined relative to the CEC RL 191 reference oil that is the baseline candidate reference oil for the European light-duty gasoline engine fuel economy test procedure, CEC L-54-T-96 (Mercedes M111). Fuel economy improvement values were computed from the on-highway test results. Testing the same two lubricants in stationary engine dynamometer tests using the Mercedes M111 and the ASTM Sequence VIB test procedures also served as a crosscheck. Both engine dynamometer tests were found to rank the fuel economy performance of the commercial engine lubricants in the same order relative to RL 191 as did the SAE J1321 procedure. A promising correlation was drawn between the Mercedes M111 and the ASTM Sequence VIB fuel economy results using CEC and ASTM reference oils.
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Citation
Ellis, S. and Buckingham, J., "Heavy-duty Engine Lubricant Fuel Economy Assessment by Available Test Methods," SAE Technical Paper 2003-01-1960, 2003, https://doi.org/10.4271/2003-01-1960.Also In
References
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- McGeehan, J.A. Alexander, W. Couch, M.C. Rutherford, J.A. Roby, S.H. Lubricants That Optimize Diesel Engine Fuel Economy and Allow Extended Oil Drains SAE Paper 2001-01-1968
- Bunemann, T. Kenebeek, D. Koen, P. Wald, W.N. Friction Modifiers for Automotive Applications-Rig Tests and Performance Lubricants World November 2002
- CEC L-54-T-96 Fuel Economy Effects of Engine Lubricants 8.1 January 7 2002
- ASTM D 6837-02 Standard Test Method for Measurement of the Effects of Automotive Engine Oils on the Fuel Economy of Passenger Cars and Light-Duty Trucks in the Sequence VIB Spark Ignition Engine March 2002