Abstract: The present invention relates to a fuel composition comprising a liquid fuel and a compound of dimer amide quaternary ammonium type. The invention also relates to the use of the compound of dimer amide quaternary ammonium type as a detergent additive in a liquid fuel for internal combustion engine.

Abstract: The present invention relates to a fuel composition comprising a liquid fuel and a compound of dimer amide quaternary ammonium type. The invention also relates to the use of the compound of dimer amide quaternary ammonium type as a detergent Q additive in a liquid fuel for internal combustion engine.

Abstract: A composition of additives for fuel including: one or more copolymer(s) including:—at least one unit of the following formula (I): wherein R1 is selected from hydrogen and methyl group, R?2 is selected from C1 to C34 hydrocarbon-based chains, an aromatic ring, an aralkyl containing at least one aromatic ring and at least one C1-C34 alkyl group, and—at least one unit of following formula (II): wherein R1 is selected from hydrogen and methyl group, Z is selected from the oxygen atom and —NR?— group with R? being selected from a hydrogen atom and C1 to C12 hydrocarbon-based chains, G includes a C1 to C34 hydrocarbon-based chain substituted with at least one quaternary ammonium group and optionally one or more hydroxyl groups, group G also possibly containing one or more nitrogen and/or oxygen atoms and/or carbonyl groups 25 at least one compound selected from succinimides substituted with a hydrocarbon-based chain.