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Further Analysis of the Effects of Heavy Aromatics and Ethanol on Gasoline Road Octane Ratings
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English
Abstract
A Road octane study conducted by the Coordinating Research Council showed heavy aromatics in gasoline to have a small adverse effect on Road octane number; but ethanol content, which was also evaluated, was not found to be a significant factor. In this paper, the data are analysed further by introducing car design variables in addition to heavy aromatics, ethanol, and the two laboratory engine octane tests. This analysis shows 10% ethanol in gasoline to have a small but beneficial effect on Road octane number independent of laboratory octane quality. The average effects in the two analyses were nearly identical, but the statistical significance of the effects differed.
Authors
Citation
Ingamells, J. and Jones, E., "Further Analysis of the Effects of Heavy Aromatics and Ethanol on Gasoline Road Octane Ratings," SAE Technical Paper 821212, 1982, https://doi.org/10.4271/821212.Also In
References
- “1980 CRC Fuel Rating Program: Road Octane Performance in 1980 Model Cars,” Report No. 520 Coordinating Research Council, Inc. Atlanta, Georgia July 1981
- Gotham M. J. Ingamells, J. C. “The Effects of Heavy Aromatics and Ethanol on Gasoline Road Octane Ratings in 1980 Model Cars,” SAE Paper No. 821211 ; presented at SAE Fuels and Lubricants Meeting Toronto, Ontario October 1982
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