What happens if a car's radiator runs low on water?

[OmarRose]

The effects of low water level in a car's radiator are: 1. The engine's cooling capacity is relatively reduced, thinning the lubricating oil and degrading its quality; 2. It exacerbates wear on the surfaces of moving parts, potentially leading to cylinder sticking, piston ring seizure, overheating, and cylinder scoring. The functions of a car's radiator are: 1. To absorb heat from the engine block; 2. To prevent the engine from overheating. The reasons for low water level in a car's radiator include: 1. Leaks in hose connections or the hoses themselves; 2. Cracks in the engine block, improper sealing or damage to the cylinder head gasket, causing water leakage; 3. Damage or pinholes in the oil cooler's sealing ring, leading to water leakage; 4. An improperly sealed radiator cap; 5. Leaks in the heater core; 6. Leaks in the coolant tee.