VP Racing Octane Booster VP Racing Octane Booster is your secret weapon for waking up your motor. It jacks up octane by up to 5 numbers (50 points) for a crisper throttle, more horsepower and faster rips. This potent brew also cleans fuel injectors, prevents gummy buildup, and helps your engine live longer with better fuel mileage. It even kicks those annoying knocks and pings to the curb and plays nice with O2 sensors and catalytic converters. Ride smoother, stronger! Features: 16 oz. treats up to 20 gallons Increases octane up to 3.5 numbers in 20 gallons Increases octane up to 5 numbers in 10 gallons Increases horsepower Eliminates knocking and pinging Lead substitute Improves throttle response and acceleration Cleans fuel injectors