METHOD AND USE Russian patent published in 2022 - IPC C10L1/08 C10L1/10 C10L1/14 C10L1/19 C10L1/198 C10L10/04 C10L10/06 

FIELD: chemistry.

SUBSTANCE: invention relates to additives in a diesel fuel composition. A method for control of deposits in a modern diesel engine having a high-pressure fuel system is proposed. In this case, the method includes combustion in the engine of the diesel fuel composition including, as an additive, a product of reaction of optionally substituted polycarboxylic acid or its anhydride and alcohol having the formula ROH, where R is an unsubstituted alkyl, alkenyl, or aryl group, and the additive includes compounds having the formula (C1) or (C2), where R¹ is an unsubstituted alkyl or alkenyl group. The use of a composite ester compound as a washing additive is also disclosed.

EFFECT: reduction or prevention of the formation of deposits in a diesel engine.

16 cl, 1 dwg, 7 ex, 3 tbl