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Improved Fuel Economy Via Engine Oils
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Abstract
A fuel-efficient passenger car engine oil has been developed that showed an average of 4.6% 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% 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 tests 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.
Authors
Citation
Waddey, W., Shaub, H., Pecoraro, J., and Carley, R., "Improved Fuel Economy Via Engine Oils," SAE Technical Paper 780599, 1978, https://doi.org/10.4271/780599.Also In
References
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