Are BMW Antifreeze and Coolant the Same Thing?

[Finley]

BMW antifreeze and coolant are not the same thing. The differences between automotive antifreeze and coolant are as follows: 1. Coolant refers to the liquid that can lower the engine temperature; antifreeze, whose full name is antifreeze coolant, is a liquid that prevents the radiator from freezing and cracking and the engine cylinder block from freezing in cold winters. 2. Coolant only has a cooling effect, while antifreeze has both cooling and antifreeze effects. For example, coolant can be water or antifreeze. 3. If the coolant is water, it will be affected by cold seasons. Antifreeze is a coolant with antifreeze function and can be used all year round. 4. Coolant is composed of ethylene glycol, dye, pure water, and coolant additives.