What do you think of the water temperature of the car?

The water thermometer of a car depends on the temperature. The temperature should be within a certain range. The normal temperature is that the pointer points to the center at 90 degrees. After the car starts, the temperature of antifreeze will also rise. The pointer will reach the center position, the heat exchange will reach a balance, and the temperature of antifreeze will not rise again. So generally speaking, it is best to start from the central position.

Not much to say, just look at the picture.