What is the normal operating temperature of coolant?

[KaiRose]

The normal operating temperature of coolant is between 80°C and 110°C. Coolant is used to regulate the engine temperature. If the temperature is too high, the engine cannot operate at its normal temperature, and moving parts may be damaged due to thermal expansion, disrupting normal clearances. Lubricating oil may also deteriorate or lose viscosity due to high temperatures, leading to parts seizing or increased wear. If the temperature is too low, the heat dissipation from combustion increases, resulting in higher working fluid performance and increased viscosity, which raises resistance to moving parts and reduces output power. The full name of coolant is antifreeze coolant, which refers to coolant with antifreeze properties. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine block during cold seasons. Antifreeze should be used year-round. As part of regular vehicle maintenance, engine antifreeze should be replaced every year.