Engine oil effects on vehicle fuel economy. Effect of molybdenum-containing, oil-soluble friction modifiers on engine fuel economy and gear oil efficiency.

Greene, A.B. Risdon, T.J.
Society of Automotive Engineers.

1982

CIENA
1013

0-89883-115-6

A selection of molybdenum-containing, oil-soluble friction modifier additives were tested comparatively in engine dynamometer tests comparatively in engine dynamometer test on gasoline and diese engines; the tests measured variations in brake specific fuel consumption with speed. The results indicate improvements ranging from 35 to 5. ABSTRACT. . 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. TEST OILS AND ADDITIVES. . 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-scalle engine tests.. PROCEDURES. DISCUSSION. CONCLUSIONS. ACKNOWLEDGEMENTS. REFERENCES.

Presenta tbls. y gráfs.

GENERAL; LUBRICANTES; ADITIVOS; PRUEBAS; MOTORES DIESEL; MOTORES DE GASOLINA; AHORRO DE COMBUSTIBLE; VEHICULOS AUTOMOTORES; USO RACIONAL DE LA ENERGIA; EFICIENCIA ENERGETICA; MOTORES DE COMBUSTION;