Patent ID: 8187345

Claim:
A mixture comprising: (a) 5-95 wt. % of at least one polar oil-soluble nitrogen compound other than components (b) and (c) which is capable of sufficiently dispersing paraffin crystals precipitated out under cold conditions in a fuel and is a reaction product formed from reacting a poly(C 2 - to C 20 -carboxylic acid), which has at least one tertiary amino group, with a primary or secondary amine; (b) 15-50 wt. % of at least one oil-soluble acid amide reaction product formed from reacting a polyamine, which has from 2 to 1000 carbon atoms, with a C 8 - to C 30 -fatty acid or fatty acid-like compound, which has a free carboxyl group; and (c) 1-50 wt. % of at least one oil-soluble reaction product formed from reacting an α,β-dicarboxylic acid, which has from 4 to 300 carbon atoms, or a derivative thereof, with a primary alkylamine, wherein the sum of all components of the mixture (a) to (c) add up to 100 wt. %.