Why is the car always losing water even though the radiator is not broken?

[ChaseLynn]

Water loss in the radiator may be caused by damage to the radiator, such as cracks in the cylinder block leading to leaks, which can occur while driving. Inspection items: Check whether the leak occurs when the car is parked or when the engine is hot. Some radiators do not leak when the car is cold and parked, but spray mist when the engine is hot, making it difficult to detect. Inspect the rubber hoses of the radiator and the connections of the water tank's rubber hoses. If the issue persists, apply sealant to all connections, drain all the water, and then add antifreeze to see if the water loss continues. If the water loss persists, replace the cylinder head gasket as it is likely blown. Additionally, check the color and condition of the engine oil to ensure it is normal. Precautions: It is important to note that the car radiator is a critical component for cooling the engine. If the radiator malfunctions and the engine cannot dissipate heat in time, it may cause severe damage to the car. If the radiator runs low on water while driving, it should be checked and refilled promptly.