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




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.

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Ministerio de Ambiente y Energía. Secretaría de Planificación del Sub-Sector Energía - Centro de Información de Energía y Ambiente, CIENA

Grettel Ruiz Matarrita

Calle 25, Avenidas 8 y 10. San José, Costa Rica

(506)25476900 - 25476239

De lunes a viernes de 8 a.m. a 12m.

Address: Av. Mariscal Antonio José de Sucre N58-63 y Fernández Salvador Edif. Olade - San Carlos, Quito - Ecuador.

Web: www.olade.org

Phone: (593 2) 259 8122 / 2598 280
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