Lucas Oil (345) 20866 Anti Gel Diesel Treatment. Replaces 20021, 1/2 Gallon / 1.893 L

Product is specifically designed to prevent cold filter plugging in diesel and bio-diesel fuels. Manufactured with the highest quality components to provide maximum performance. Contains Real water dispersants to effectively remove moisture from the entire fuel system, Lowers the cold filter plugging point of ULSD and Biofuels, Prevents fuel thickening and gelling, No alcohol, Will not void warranties, No harmful effect on diesel particulate filters.