Restore lost power and increase driving performance with Prestone 0 to 60 octane booster. This gas additive is effective in all grades of gasoline, including E10 ethanol blended fuel. It eliminates the need for higher-octane fuel and reduces engine pinging and knocking. You can use this fuel treatment at every refuelling to increase octane by up to 20 points. Treats 80 L of fuel.