Fuel Right - Diesel and Fuel Oil Tank Treatment Additive - Cleans Tanks, Prevents Corrosion, Dissolves Sludge and Prevents Fuel Freeze-Ups, 15K 24 oz Bottle Works in home heating fuel oil and all diesel fuels including: Ultra Low Sulfur Diesel (ULSD) fuel and biodiesel blends Prevents fuel filter plugging, dissolved sludge and protects against fuel tank corrosion Cleans the entire fuel system including: tanks, nozzles, strainers, injectors and filters Prevents winter fuel line freeze ups & restores diesel lubricity Ultra concentrated formula, 24 oz treats 2,800 Gallons of diesel fuel or home heating fuel oil.