Abstract:
A fuel additive composition for improving the delivery of friction modifier to the lubricant oil of an internal combustion engine comprising (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine; and, (b) at least one fuel detergent is provided. Also provided is a fuel composition containing the fuel additive composition and a method for operating an engine employing the fuel composition therefor.
Abstract:
A fuel composition comprising (a) a major amount of an internal combustion engine hydrocarbon fuel containing at least one alcohol, it being provided that MTBE is substantially absent from the fuel and (b) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine is provided. Also provided is a method for operating an engine employing the fuel composition therefor.
Abstract:
A fuel additive composition composed of the reaction product of (a) mixed fatty acid esters; (b) a mono or di-(hydroxy alkyl amine) or mixtures thereof; and (c) a low temperature property enhancing effective amount of a low molecular weight ester; wherein the reaction mixture has a molar ratio of amine to total ester content in the range from 10.0 to 1.0. The fuel additive exhibits detergent and friction reducing properties when added to a fuel thereto and further exhibits good low temperature stability properties. Methods for making the inventive composition and fuel compositions containing the additive are also disclosed.