Engine oil effects on vehicle fuel economy. Improved fuel economy via engine oils.

Society of Automotive Engineers.
Waddey, Walter E. ...[et al.].

1982

1013
CIENA

0-89883-115-6

Afuel-eeficient passenger car engine oil has been developed that showed an average of 4.6. INTRODUCTION. improvement in fuel economy compared with several premium, SAE 10W-40 oils (API Engine Service Classification SE) in a road fleet test. In the combined Environmental Protection Agency city/highway testing this oil gave 5.5. ABSTRACT. better fuel economy on average than an SE premium 10W-40 oil. The excellent overall performance of this lubricant was confirmed by ASTM Engine Sequence test and evaluation in severe taxicab operations. The new 10W-40 oil, which incorporates friction reducing properties, is formulated with petroleum base stocks and known additives, many of which are conventionally used. It is expected that advances in friction-related technology developed in this work may lead to oils with even higher levels of fuel economy improvement in the future. TECHNICAL BASIS FOR FUEL-EFFICIENT ENGINE OILS. DEFINITION OF FRICTION-REDUCING ADDITIVE TECHNOLOGY EFFECTS. GENRAL ROUTES TO LOWER FRICTION ENGINE OILS. ENGINE FUEL ECONOMY DYNAMOMETER TEST. SUMMARY OF FORMULATION TECHNOLOGY. FUEL ECONOMY BENEFITS OF FRICTION-REDUCING ENGINE OILS. OVERALL ENGINE PERFORMANCE. SUMMARY AND CONCLUSIONS. ACKNOWLEDGMENTS. REFERENCES.

Presenta tbls. y gráfs.

GENERAL; VEHICULOS DE PASAJEROS; MOTORES ELECTRICOS; ACEITES COMBUSTIBLES; PRUEBAS; INVESTIGACION ENERGETICA; LUBRICANTES; ADITIVOS; AHORRO DE COMBUSTIBLE; VEHICULOS AUTOMOTORES; USO RACIONAL DE LA ENERGIA; EFICIENCIA ENERGETICA; MOTORES DE COMBUSTION;