What is the normal temperature for car coolant?

Typically, the suitable temperature range for coolant is between 90 and 120 degrees Celsius. If the temperature exceeds this range, the vehicle will usually issue an alert. It should be noted that the temperature reading you provided is actually the transmission oil temperature, not the coolant temperature.

Maintaining the transmission oil temperature below 100 degrees Celsius is normal, and there's no need to overly focus on specific values. It is recommended that you refer to your vehicle's user manual for more accurate information on relevant parameters. Regularly consulting the manual will be beneficial for your future driving and maintenance, helping to avoid further questions.

Additionally, the temperature of the coolant is generally maintained at around 90 degrees Celsius. When the engine temperature rises, the coolant temperature will also increase accordingly, which is a normal phenomenon. Typically, when the needle on the car's water temperature gauge reaches the middle position, it indicates that the water temperature is normal, and this is the most suitable time to start the vehicle.

The design of the water temperature gauge may vary from vehicle to vehicle, with some featuring physical or virtual dial pointers, while a few vehicles only display a warning indicator when the temperature is too high. Regardless of the form, the orientation of the pointer is generally similar, typically covering a range from 60 to 120 degrees Celsius.

It is worth mentioning that antifreeze is not ordinary tap water; its special components such as calcium chloride, methanol, ethanol, ethylene glycol, and glycerol enable it to function properly in environments exceeding 100 degrees Celsius. However, the temperature of engine coolant should not be too low or too high but rather maintained within a certain optimal range. The normal coolant temperature typically corresponds to the middle position of the water temperature gauge, approximately 90 degrees Celsius.