FIELD: chemistry.
SUBSTANCE: invention relates to a fuel composition for an injection diesel engine, which includes a basic amount of fuel and a minimum effective amount of a reaction product of (i) a hydrocarbyl-substituted compound containing at least one tertiary amine group, wherein the hydrocarbyl-substituted compound is selected from a group consisting of C10-C30-alkyl- or alkenyl-substituted amidopropyldimethylamines and C12-C200-alkyl- or alkenyl-substituted succinylcarbonyldimethylamines and (iii) halo-substituted C2-C8 carboxylic acid salts, wherein the obtained reaction product is substantially free of non-covalently bonded anionic substances. The invention also relates to a concentrate of the fuel additive for use in an injection diesel engine, as well as a method of improving performance of an injection diesel engine and a method of operating an injection diesel engine.
EFFECT: improved engine performance when an effective amount of the reaction product of compounds (i) and (ii) is added to fuel.
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