The Star brite 84332 PRO Star Gas Stabilizer w/Corrosion Inhibitors is a 32 oz product designed for all gasoline engines requiring long-term fuel preservation. It stabilizes gasoline and ethanol blends, preventing gum and deposits while coating internal engine surfaces. The concentrated formula guards against rust in fuel systems and engine components, and it is effective in various climates. To use, add 1 fl oz per 5 gallons of fuel, fill the tank, and run the engine for 10 minutes. This product can expose you to chemicals known to the State of California to cause cancer, birth defects or other reproductive harm; for more information go to P65Warnings.ca.gov.