FIELD: chemistry.
SUBSTANCE: invention relates to use of a mixture and the mixture itself, said mixture containing: (A) 5 to 60 wt % of at least one oil-soluble polar nitrogen compound which can interact with paraffin crystals in middle-distillate fuels under cold conditions, and (B) 5 to 70 wt % of at least one oil-soluble aliphatic compound with an alkyl or alkenyl chain having at least 8 carbon atoms, obtainable from aliphatic mono- or dicarboxylic acids having 4 to 300 carbon atoms or derivatives thereof with mono- or polyamines or with alcohols, for lowering the cloud point (CP) in middle-distillate fuels which, before the addition of additives, have a CP of -8.0°C or lower by at least 1.5°C compared to additive-free middle-distillate fuel at a dosage of the mixture of 50 to 300 ppm, with no simultaneous deterioration in the response behaviour for the lowering of the cold filter plugging point (CFPP) on addition of cold flow enhancers.
EFFECT: improved properties.
9 cl
