COOLELF AUTO SUPRA -50°C is a «very long life» coolant based on monoethylene glycol and organiccorrosion inhibitors.COOLELF AUTO SUPRA -50°C is a cooling liquid, that can be used in all cooling systems of combustionengines in cars, vans, trucks, buses, constructing machines and agricultural tractors.COOLELF AUTO SUPRA -50°C contains no silicates, phosphates, chromates, nitrites or boron.