The fan blades operate automatically when the engine temperature reaches what degree

Engine fans are designed for 85-90 degrees of water because of the lubrication of the engine oil and the design gap between the piston and cylinder. So after the engine starts to warm the car, water temperature rises after the normal driving, otherwise easy to pull cylinder (poor lubrication), high fuel consumption (insufficient fuel oil gasification) phenomenon. So the engine fan usually runs automatically at 93-95 degrees, and a fast vehicle will adjust it a bit higher.


When the water temperature reaches 85 degrees, the thermostat opens and the hot water enters the water tank and begins to enter the cooling cycle. If the water temperature continues to rise to 95 degrees, the fan in the water tank will operate automatically to force cooling and prevent the loss of cooling water after boiling.