The Champion Oil Cold Blue Coolant Additive is formulated with a chemical wetting agent designed to improve the heat transfer of the vehicle's cooling system, allowing the engine to run at up to 25 degrees F cooler to help prevent overheating. This additive contains a premium corrosion inhibitor package formulated to protect engine seals and all metals found in common cooling systems, including aluminum. This product is compatible with all types of colors of coolant/antifreeze and contains no glycol.