Patent ID: 8388704

Claim:
A fuel additive composition comprising an alkylene-oxide-adducted hydrocarbyl amide containing from about 3 to 50 moles of alkylene oxide per 1 mole of hydrocarbyl amide, and a friction modifier selected from the group consisting of a fatty acid, an aliphatic amine, an aliphatic amide having from about 7 to 31 carbon atoms, a polyhydric aliphatic alcohol, an aliphatic ester, and an aliphatic ether; wherein the fatty acid is selected from the group consisting of 1) an unsaturated aliphatic monocarboxylic acid selected from the group consisting of oleic acid and linoleic acid, 2) an aliphatic dicarboxylic acid, and 3) an oligomer of an unsaturated aliphatic monocarboxylic acid.