The Champion Oil Professional Grade Octane Booster, No. 4279K, is safe and effective for use in all gasoline engines, and is a lead substitute for collector and performance automobiles. According to the company, the product stops knocks, pings and hesitation, restores performance, maximizes power, removes carbon deposits, improves ignition and responsiveness and helps fuel burn cleaner. Using the additive at every gasoline fill-up can boost the octane level up to 15 points or 1.5 RON.