What is the difference between antifreeze and coolant?

[DeHaven]

The differences between antifreeze and coolant are: 1. Nature: The full name of antifreeze is antifreeze coolant. It is a type of coolant containing special additives, mainly used in liquid-cooled engine cooling systems. Antifreeze is not entirely equivalent to coolant. Coolant refers to any liquid that can cool the engine, which can be either water or antifreeze. Water, being highly limited by temperature, is considered a very low-grade coolant. 2. Location: Antifreeze and coolant are not added to the same place. Antifreeze is added to the radiator, while coolant is added to the small reservoir next to it, also known as the overflow tank. 3. Function: Besides preventing freezing, antifreeze has other functions such as rust prevention, corrosion inhibition, lubrication, a high boiling point, and minimal scaling, which are features that coolant does not possess.