A fuel composition for powering a combustion engine, the composition comprising: a liquid base fuel; and a copolymer obtainable by copolymerizing at least the following monomers: • at least one bicyclic (meth)acrylate ester, wherein the bicyclic (meth)acrylate ester is of the general formula wherein R is H or -CH 3, A is -CH 2 -, -CH(CH 3)- or -C(CH 3) 2 -, and M is covalently bonded to a carbon atom of the six-membered ring and is selected from the group consisting of hydrogen and a methyl group or a plurality thereof; • at least one fatty-alkyl (meth)acrylate, wherein the fatty-alkyl (meth)acrylate is a C 8 -C 24 alkyl (meth)acrylate, wherein the C 8 -C 24 alkyl group can be linear or branched, substituted or unsubstituted, saturated or unsaturated; • optionally at least one aromatic vinyl monomer; and • optionally other ethylenically unsaturated monomers, wherein the copolymer comprises: • 10 to 95 wt% of the bicyclic (meth)acrylate ester; • 5 to 40 wt% of the fatty-alkyl (meth)acrylate; • 0 to 65 wt% of the aromatic vinyl monomer; • 0 to 50 wt% of other ethylenically unsaturated monomers, up to a total of 100 wt%, wherein the weight percentages of the monomer are based on the total weight of all the monomers, and wherein the copolymer has a weight averaged molecular weight (Mw) of 1,500,000 to 50,000,000 Dalton, wherein Mw is determined in accordance with GPC-MALS method a) as herein described. a liquid base fuel; and a copolymer obtainable by copolymerizing at least the following monomers: • at least one bicyclic (meth)acrylate ester, wherein the bicyclic (meth)acrylate ester is of the general formula wherein R is H or -CH 3, A is -CH 2 -, -CH(CH 3)- or -C(CH 3) 2 -, and M is covalently bonded to a carbon atom of the six-membered ring and is selected from the group consisting of hydrogen and a methyl group or a plurality thereof; • at least one fatty-alkyl (meth)acrylate, wherein the fatty-alkyl (meth)acrylate is a C 8 -C 24 alkyl (meth)acrylate, wherein the C 8 -C 24 alkyl group can be linear or branched, substituted or unsubstituted, saturated or unsaturated; • optionally at least one aromatic vinyl monomer; and • optionally other ethylenically unsaturated monomers, wherein the copolymer comprises: • 10 to 95 wt% of the bicyclic (meth)acrylate ester; • 5 to 40 wt% of the fatty-alkyl (meth)acrylate; • 0 to 65 wt% of the aromatic vinyl monomer; • 0 to 50 wt% of other ethylenically unsaturated monomers, up to a total of 100 wt%, wherein the weight percentages of the monomer are based on the total weight of all the monomers, • at least one bicyclic (meth)acrylate ester, wherein the bicyclic (meth)acrylate ester is of the general formula wherein R is H or -CH 3, A is -CH 2 -, -CH(CH 3)- or -C(CH 3) 2 -, and M is covalently bonded to a carbon atom of the six-membered ring and is selected from the group consisting of hydrogen and a methyl group or a plurality thereof; R is H or -CH 3, A is -CH 2 -, -CH(CH 3)- or -C(CH 3) 2 -, and M is covalently bonded to a carbon atom of the six-membered ring and is selected from the group consisting of hydrogen and a methyl group or a plurality thereof; • at least one fatty-alkyl (meth)acrylate, wherein the fatty-alkyl (meth)acrylate is a C 8 -C 24 alkyl (meth)acrylate, wherein the C 8 -C 24 alkyl group can be linear or branched, substituted or unsubstituted, saturated or unsaturated; • optionally at least one aromatic vinyl monomer; and • optionally other ethylenically unsaturated monomers, • 10 to 95 wt% of the bicyclic (meth)acrylate ester; • 5 to 40 wt% of the fatty-alkyl (meth)acrylate; • 0 to 65 wt% of the aromatic vinyl monomer; • 0 to 50 wt% of other ethylenically unsaturated monomers, up to a total of 100 wt%, wherein the weight percentages of the monomer are based on the total weight of all the monomers,