Sun Ventures, Inc.

Barry A Bisson

Raymond Wynkoop

Jer-Yu Shang

A useful additive for gasoline is a mixture of a methyl-substituted phenol and an ether containing a branched alkyl group and boiling below 460.degree.F. Preferably, the phenol and ether are present in amounts and in relative proportions sufficient to provide a synergistic increase in the research octane number of a gasoline. A preferred composition contains one part by volume of para-cresol to from 0.1 to 10 parts of methyl methoxy propane. The composition can also contain an aliphatic alcohol, an octane boosting cerium compound and conventional gasoline additives.

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Wilmington, DE, United States of America

Barry A Bisson