Can Water Replace Automotive Coolant?

[ChristianAnn]

Automotive coolant cannot be replaced with water. While adding a small amount of water as a temporary emergency measure is acceptable, completely substituting coolant with water should only be done in extreme situations. Even when forced to add water, distilled water is preferable to avoid affecting the thermostat and cooling system. The full name of coolant should be antifreeze coolant, indicating its function of preventing freezing. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine block during cold weather. Antifreeze is not just for winter use; it should be used year-round. In regular vehicle maintenance, the engine coolant should be replaced annually.