Lucas Safeguard Ethanol Fuel Conditioner & Stabilizer is specially formulated to address the challenges of ethanol-based fuels, including E-10, E-15, E-85, pure ethanol, and blends with gasoline. Fully soluble in ethanol fuels, it will not harm filters and provides effective protection against rust and corrosion.

The advanced formula cleans injectors, valve seats, combustion chambers, and other critical fuel components while stabilizing fuel with oxidation inhibitors to prevent varnish and gum formation. It also protects engine oil from the harmful effects of alcohol combustion.

One ounce treats five gallons of ethanol fuel, with the 5.25 oz bottle treating up to 25 gallons, making it ideal for automobiles and marine applications. Note: Not recommended for diesel engines.