The family of automotive coolants and antifreezes refers to products used to control the temperature of a vehicle's engine and cooling system. These products are essential to keep the engine in optimal operating condition and prevent damage caused by overheating or freezing of the system. Automotive coolants are liquids used in the engine's cooling system to absorb heat generated during engine operation. These fluids circulate through the engine and help keep it at a proper temperature. Automotive coolants are often made up of a mixture of water and chemical additives that improve their heat transfer and corrosion protection properties.