VP Racing Fuels Octanium Unleaded Fuel Additive - 1qt. 29505VP Racing Octanium Unleaded Fuel Additive is formulated to provide a big octane boost and increase horsepower. Safe for use in cars, trucks and motorcycles with catalytic converters and O2 sensors. Octanium Unleaded eliminates knocking and pinging, cleans fuel injectors, eliminates gum and varnish build up, and improves throttle response and acceleration. Treats up to 10 gallons Increases octane up to 70 points Lead substitute