Anti-wear additives in alkanol fuels

The fuel composition of claim 27 wherein said polycarboxylic acid is a dimer of linoleic or oleic acid or mixtures thereof and said glycol is ethylene or diethylene glycol.

A method of reducing wear in an engine operating on fuel containing a major amount of a monohydroxy alkanol having from 1 to 5 carbon atoms comprising adding an effective wear reducing amount of an additive which is an ester of a monocarboxylic or polycarboxylic acid and a polyhydric alcohol, said acid having about 2 to about 3 carboxylic acid groups and about 8 to about 65 carbon atoms, said alcohol having about 2 to about 10 hydroxyl groups and about 2 to about 90 carbon atoms and said ester having at least two free hydroxyl groups.

A fuel composition having improved wear reduction and lubricity properties and comprising a major amount of a monohydroxy alkanol having from 1 to 5 carbon atoms and an effective wear reducing amount of an additive which is an ester of a monocarboxylic or polycarboxylic acid and a polyhydric alcohol, said acid is a dimer acid of a conjugated fatty acid wherein the carboxyl groups are separated from each other by about 16 to about 22 carbon atoms, said alcohol having about 2 to about 10 hydroxyl groups and about 2 to about 90 carbon atoms and said ester having at least two free hydroxyl groups.