Power Service 09225-06 Clear-Diesel Fuel and Tank Cleaner - 32 oz. Disperses diesel fuel contaminants and removes water It has +PetroFresh formula which provides maximum long-term storage stability and keeps fuel fresh Prevents premature fuel-filter plugging and protects against fuel tank corrosion In winter, prevents fuel-filter icing Effective in all diesel fuels, including Ultra Low Sulfur Diesel (ULSD) fuel, biodiesel and biodiesel blends