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Heavy Duty Diesel Engine Fuel Economy: Lubricant Sensitivities
Technical Paper
2000-01-2056
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The fuel consumption of heavy duty diesel engines is of great importance to fleet operators, since fuel can contribute up to 30% of the operating costs. This paper discusses the differences between fuel economy oils for heavy duty diesel engines and passenger car engines.
A simple model is then presented showing how the reduced friction due to the use of fuel economy lubricants (both in the engine and the transmission) can lead to fuel consumption benefits. By including realistic losses due to air resistance and tyre rolling resistance, the model can predict fuel consumption benefits under different speed and load conditions that are in reasonable agreement with the benefits found in carefully controlled field trials.
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Citation
Taylor, R., "Heavy Duty Diesel Engine Fuel Economy: Lubricant Sensitivities," SAE Technical Paper 2000-01-2056, 2000, https://doi.org/10.4271/2000-01-2056.Also In
References
- “Road Vehicle Fuel Economy” Waters M.H.L. HMSO 1992
- “Fuel Economy of Engine Lubricants: Mercedes Benz M111 E20 Engine” CEC Test Method 1998
- ASTM ASTM Research Report: Sequence VIA Test Development March 1995
- ASTM ASTM Sequence VIB Test Research Report 1999
- “Engine Friction: The Influence of Lubricant Rheology” Taylor R.I. Proc. Instn. Mech. Engrs. 211 235 246 1997
- “Engine Friction Lubricant Sensitivities: A Comparison of Modern Diesel & Gasoline Engines” Proceedings of Esslingen Tribology Conference 1998
- “Report of St. Louis Truck Fuel Economy Demonstration” Kibbee L. Allen J.E. SAE 780975
- “Energy Savings with Multigraded Diesel Lubricants - An Experimental Test Design in Winter, Urban Bus Operation” Farnsworth G.R. Bachmann H.E. Overton R. SAE 780371
- “Fuel Savings with Multigraded Engine Oils in Medium-Speed Diesel Engines” Stauffer R.D. Zahalka T.L. Kornmann R.L. Lubrication Engineering Dec 1984 744 751
- “Lubricating Oil Properties Affecting Fuel Economy in Diesel Engines” Kagaya M. Sato S. Sugimura K. SAE 811412
- “European Requirements for a Super High-Performance Diesel Oil” Colbourne D. Truck Technology International 1988 108 111
- “Internal Combustion Engine Fundamentals” Heywood J.B. McGraw-Hill 1988
- “Tribological Issues in Reducing Piston Ring Friction Losses” Tateishi Y. Tribology International 27 17 23 1994
- “Aerodynamics of Road Vehicles: From Fluid Mechanics to Vehicle Engineering” 4th Society of Automotive Engineers 1998 Hucho Wolf-Heinrich
- “Development and Use of a Vehicle Powertrain for Fuel Economy and Performance Studies” Phillips A. Assanis D. Badgley P. SAE 900619
- “Motor Vehicle Fuel Economy” Stone R. Macmillan 1989
- “Studies on Friction Characteristics of Reciprocating Engines” Wakuri Y. Soejima M. Ejima Y. Hamatake T. Kitahara T. SAE 952471