What is the normal operating temperature for a car's coolant?

[EmilioMarie]

Car's normal operating coolant temperature is 90 degrees Celsius. The car's temperature gauge usually displays two letters, C and H, or uses white and red zones to indicate the temperature range. C stands for Cold, while H stands for Hot. If the temperature gauge approaches the H or the red danger zone, and in severe cases, the coolant temperature warning light illuminates, it indicates that the engine coolant temperature is too high. The car's radiator, also known as the heat exchanger, is a key component in the car's cooling system. Its function is to dissipate heat. The coolant absorbs heat in the water jacket, flows to the radiator to release the heat, and then returns to the water jacket in a continuous cycle, achieving the effect of heat dissipation and temperature regulation. It is also an important part of the car's engine.