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The Effect of Molybdenum-Containing, Oil-Soluble Friction Modifiers on Engine Fuel Economy and Gear Oil Efficiency
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 1981 by SAE International in United States
Annotation ability available
A selection of molybdenum-containing, oil-soluble friction modifier additivas were tested comparatively in engine dynamometer tests on gasoline and diesel engines; the tests measured variations in brake specific fuel consumption with speed. The results indicate improvements ranging from 3% to 5%.
A similar selection of molybdenum-containing additives were evaluated in terms of transmission efficiency in a hypoid-gear, rear-axle test rig; the baseline oil was a formulated SAE-75W gear oil. Improvements in efficiency averaged 1-3%.
Bench-scale friction tests utilizing the Press-Fit, Timken and Four-Ball test devices were employed to establish a correlation between small-scale rigs and full-scale engine tests.
CitationGreene, A. and Risdon, T., "The Effect of Molybdenum-Containing, Oil-Soluble Friction Modifiers on Engine Fuel Economy and Gear Oil Efficiency," SAE Technical Paper 811187, 1981, https://doi.org/10.4271/811187.
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