CRC Salt Terminator, Engine Flush, Cleaner & Corrosion Inhibitor Concentrate - This concentrate flushes marine engines, cooling systems, heat exchanges, Cleans & Protects boats, PWCs, trailers, gear, fishing tackle, autos, RVs, trucks, tools, motorcycles, atvs, bicycles, patio furniture & more! 1 Gallon Treatment Ratio: 4 fl oz to 1 Gal of water