Product Details: The Lucas Oil Products Octane Booster Performance Enhancer Fuel Additive is the perfect solution for improving the performance of your vehicle. This 15-ounce fuel additive helps to reduce engine knocks and promotes the use of clean fuels to reduce pollution. It is safe for use in fuel injected and carbureted engines, as well as turbos, oxygen sensors and catalytic converters. FleetPride is your First Click in Heavy Duty®.