Fuel composition
View Patent ↗Use of a liquid fuel composition comprising (a) a gasoline base fuel and (b) from 0.5 to 50% v/v of naphtha as a fuel for a spark ignition internal combustion engine, wherein the spark ignition internal combustion engine is comprised within the powertrain of a hybrid electric vehicle.
1. A method of operating a spark ignition internal combustion engine wherein the spark ignition internal combustion engine is comprised within the powertrain of a hybrid electric vehicle, comprising operating the spark ignition internal combustion engine using a liquid fuel composition comprising (a) from at least 50% m/m of a gasoline base fuel and (b) from 0.5 to 50% v/v of naphtha, wherein the hybrid electric vehicle is a plug-in hybrid electric vehicle.
2. The method of claim 1 wherein the naphtha is Fischer-Tropsch derived naphtha.
3. The method of claim 1 wherein the liquid fuel composition is a gasoline.
4. The method of claim 1 wherein the liquid fuel composition has a Research Octane Number (RON) of 95 or less.
5. The method of claim 1 wherein the liquid fuel composition has a Research Octane Number (RON) of 93 or less.
6. The method of claim 1 wherein the liquid fuel composition comprises from 10 to 50% v/v naphtha.
7. A method of improving the fuel consumption in a spark ignition internal combustion engine comprising operating the spark ignition internal combustion engine using a liquid fuel composition comprising (a) from at least 50% m/m of a gasoline base fuel and (b) from 0.5 to 50% v/v of naphtha, wherein the spark ignition internal combustion engine is comprised within the powertrain of a plug-in hybrid electric vehicle.
8. The method of claim 7 wherein the naphtha is Fischer-Tropsch derived naphtha.
9. A method of improving power output in a spark ignition internal combustion engine comprising operating the spark ignition internal combustion engine using a liquid fuel composition comprising (a) from at least 50% m/m of a gasoline base fuel and (b) from 0.5 to 50% v/v of naphtha, wherein the spark ignition internal combustion engine is comprised within the powertrain of a plug-in hybrid electric vehicle.
10. The method of claim 9 wherein the naphtha is Fischer-Tropsch derived naphtha.