What does the blue color on the car's water temperature gauge mean?

[AndrewAnn]

Car water temperature gauge blue indicates low water temperature in the car. The water temperature indicator on the car uses a mechanical indicator. When the pointer is in the blue position, it means the car's water temperature is low; when the pointer is in the red position, it means the car's water temperature is high. The normal working water temperature for a car is 90 degrees Celsius. Low water temperature is caused by the car's cold start, and the water temperature will rise after driving for a while. If the water temperature reaches 90 degrees Celsius, it means the car's water temperature is too high, and the car should not continue to drive at this time. After the car starts, the water temperature is relatively low, and it is in the warm-up state. At this time, the vehicle should not be driven aggressively, otherwise it will cause engine wear. When the water temperature reaches the engine's working temperature, the car can be driven normally.