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Determining Frictional Characteristics of Engine Oils by Engine Friction and Viscosity Measurements
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English
Abstract
The frictional response of an engine to a particular engine oil depends on the combined effects of the oil’s viscosity and additives which modify rubbing friction during boundary lubrication. A single-cylinder engine friction test is described which measures the frictional characteristics of an oil. These frictional results are integrated with high shear rate viscosity measurements, enabling the individual effects of viscosity and additives on friction level to be viewed separately.
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Authors
Citation
Dancy, J., Marshall, H., and Oliver, C., "Determining Frictional Characteristics of Engine Oils by Engine Friction and Viscosity Measurements," SAE Technical Paper 800364, 1980, https://doi.org/10.4271/800364.Also In
References
- Rein S. W. Alexander D. L. “Development of a High Shear Rate Capillary Viscometer for Engine Oils” Presented at Joint SAE/ASTM Symposium on the Relation Between Engine Oil Viscosity and Engine Performance, SAE Annual Meeting Detroit, Michigan February 1980
- McGeehan J. A. “A Literature Review of the Effects of Piston and Ring Friction and Lubricating Oil Viscosity on Fuel Economy” Paper No. 780673 , SAE Passenger Car Meeting June 1978
- McMillan M. L. Murphy C. K. Rosenberg R. C. “Viscosity Effects on Engine Wear Under High-Temperature, High-Speed Conditions” SAE Fuels and Lubricants Meeting Toronto, Canada November 1978