Collection: Fuel System Additives

Octane booster and fuel system additives from Maxima Racing Oils. This collection currently holds Maxima Hi-Test octane booster in a 16oz bottle, made for high-compression engines and race fuel blends in motorcycles, UTVs and race cars.

Dose by the ratio on the label for the tank size you're treating, and add it before filling so it mixes. It's not a substitute for the fuel your engine is tuned for. See Oil, Fluids & Additives and Maxima USA.