Patent ID: 7918990

Claim:
A fuel for feeding spark ignition engines, in particular those fitted in aircraft, having an F4 octane number at least equal to 130 and a reduced level of aromatic compounds, said fuel containing greater than 40% by volume of a first hydrocarbons base (B1) essentially constituted by isoparaffins comprising 6 to 9 carbon atoms, wherein a level of isoparaffins containing eight carbon atoms in the isoparaffinic hydrocarbons cut (B1) is greater than 70% by mass, and a second hydrocarbons base (B2) also constituted by isoparaffins comprising 4 or 5 carbon atoms wherein the fuel contains at least 5.0% by volume of a hydrocarbons base (B3) essentially composed of cyclohexane, and in that a ratio R of the quantities by volume (B1+B2)/B3 is greater than 2.0, wherein the level of aromatic compounds of the fuel is less than 10% by volume.