VP Octane Booster Concentrate is formulated to be the best octane booster fuel additive for cars and trucks that have both catalytic converters and oxygen sensors. It is safe for limited use in those applications. VP Octane Booster provides an octane boost up to 5 numbers (50 points). Subsequently, it increases horsepower. Furthermore, it can eliminate knocking and pinging, clean fuel injectors, and eliminate gum and varnish build up. VP Octane Booster will improve throttle response and acceleration when used as directed. 32oz treats up to 20 gallons of gas.