COOLANT M4.0 is an etylene glycol-based, ready-to-use engine coolant that combines organic and silicate technology to meet the requirements of well-known vehicule manufacturers. Thus, the radiator protection agent offers powerful frost and corrosion protection in the most modern engines, especially in engines subjected to high loads. It effectively prevents deposits in the cooling system. This coolant protects engines, coolers, water pumps and heat exchangers against freezing, corrosion and overheating. It also effectively prevents deposits in the cooling system.