What are the reasons for engine coolant deficiency?

[McJeffrey]

Here are the reasons for engine coolant deficiency: 1. When the water temperature rises, the steam inside the water channel forces the coolant out of the reservoir. 2. Poor performance of the water pump or thermostat can cause the circulating system's water temperature to become too high, leading to excessive pressure inside the radiator and cooling system, which results in coolant flowing out from the reservoir. 3. Poor sealing of the cylinder gasket. Below are some related points: 1. Lack of coolant in a car means the car's engine and radiator lack protection. 2. Insufficient coolant in a car can affect the radiator's heat dissipation efficiency, failing to achieve the necessary cooling effect. This disrupts the normal circulation of coolant, leading to high temperatures and, in severe cases, can cause engine damage.