Patent ID: 7351268

Claim:
A fuel composition comprising levulinic acid, or a functional derivative thereof, as an oxygenate in the fuel composition, wherein the fuel composition is substantially free of alkanolamides and wherein the composition contains 92-97.5% by volume of gasoline and from 2-5% by volume of ethyl levulinate, and 0-1% water and from 0.5-2% by volume of an additive selected from the groups consisting of: a) an alkoxylated linear or branched saturated or unsaturated monoalcohols having 8 to 24 C atoms, containing zero or 1 to 20 mol of ethylene oxide and/or 1 to 5 mol of propylene oxide per mol of alcohol or b) polyols having 2 to 6 carbon atoms, optionally partially esterified with fatty acids having 12 to 24 carbon atoms, or c) alkoxylated fatty acids having 12 to 24 carbon atoms and 4 to 20 mol of ethylene oxide per mol of fatty acid, or d) ethoxylated dimeric fatty acids.