How many kilometers does a car need to run before the fan turns on?

[FaithLynn]

The activation of a car's cooling fan depends on the coolant temperature. Here are the specific details about the car's cooling fan: 1. Automatic activation condition: The radiator fan will automatically turn on when the coolant temperature reaches 98°C. The car's radiator fan operates automatically and cannot be manually controlled. It does not activate at low temperatures and has two speed settings for medium and high temperatures. 2. Medium and high fan speeds: Generally, the medium speed activates automatically at 95°C, and the high speed activates at 105°C. When the coolant temperature reaches 95°C, the fan starts and operates at 1600 RPM. When the temperature reaches 105°C, the fan speed increases to approximately 2400 RPM to enhance cooling efficiency.