Abstract: The present disclosure relates to methods and fuel compositions for reducing or eliminating fuel injector deposits in high pressure gasoline engines. The fuel compositions include gasoline and a synergistic combination of a fuel injector clean-up mixture including a heterocyclic amine, diamine, or open chain derivative thereof and a hydrocarbyl substituted dicarboxylic anhydride derivative selected from a diamide, acid/amide, acid/ester, diacid, amide/ester, diester, and imide.

Abstract: The present invention relates to the field of fuel additives for fuel compositions and more particularly to a composition that can be used as a friction modifier, and its preparation process. More particularly, the present invention concerns a composition comprising at least one fatty acid amide of diethanolamine (DEA) and at least one fatty acid ester and/or amide of DEA oligomer, and it preparation process.

Abstract: The present invention relates to the field of fuel additives for fuel compositions and more particularly to a composition that can be used as a friction modifier, and its preparation process. More particularly, the present invention concerns a composition comprising at least one fatty acid amide of diethanolamine (DEA) and at least one fatty acid ester and/or amide of DEA oligomer, and it preparation process.

Abstract: The present disclosure relates to methods and fuel compositions for reducing or eliminating fuel injector deposits in high pressure gasoline engines. The fuel compositions include gasoline and a synergistic combination of a fuel injector clean-up mixture including a heterocyclic amine, diamine, or open chain derivative thereof and a hydrocarbyl substituted dicarboxylic anhydride derivative selected from a diamide, acid/amide, acid/ester, diacid, amide/ester, diester, and imide.

Abstract: The present disclosure relates to methods and fuel compositions for reducing fuel injector deposits in gasoline engines operated at high fuel pressures. The fuel compositions include hydrocarbons boiling in the gasoline range and a synergistic fuel injector cleaning mixture.

Abstract: A fuel additive concentrate for gasoline, a gasoline fuel containing an additive mixture, a method for reducing wear in an engine and in a fuel delivery system of a gasoline engine, and a method for improving injector performance. The additive concentrate includes an aromatic solvent and a mixture that contains (i) N,N-bis(2-hydroxyethyl)alkylamide, (ii) 2-((2-(bis(2-hydroxyethyl)amino)ethyl)amino)ethyl alkanoate and N-(2-(bis(2-hydroxyethyl)amino)ethyl)-N-(2-hydroxyethyl)alkylamide, and (iii) fatty acid ester(s) and amide(s) derived from a self-condensation product of diethanolamine (DEA) containing at least 3 amino groups. A weight ratio of (i) to (ii) to (iii) in the concentrate ranges from about 8:2:0 to about 2:5:3. The fuel additive mixture is substantially devoid of glycerin and remains fluid at a temperature down to about ?20° C.