Mannol G11 coolant is a ready to use silicate based solution made for year round engine cooling protection. It safeguards metals and alloys including brass copper alloy treated steel cast iron and aluminium against corrosion and high temperature damage. The formula prevents deposit formation and supports efficient heat transfer while resisting foam buildup. It is neutral toward inserts hoses rubber and plastic components ensuring compatibility throughout the cooling system. Free from nitrates phosphates and amines it offers exceptional service life of up to three years. Designed for modern cooling systems where ethylene glycol antifreeze is recommended and protecting against temperatures as low as minus forty degrees. Reliable long lasting coolant that supports engine temperature control and system durability.