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: The concentrated chemical (usually ethylene glycol or propylene glycol ).

Using the wrong type can cause chemical reactions that damage your engine. Always consult your for the specific formulation required. Antifreeze: what is it, colours and how to use | RAC Drive

: A mixture of antifreeze and water, typically at a 50/50 ratio . Choosing the Right Type

Antifreeze is a glycol-based additive used in your vehicle’s cooling system to prevent the water in your radiator from freezing in winter and boiling over in summer. It also acts as a lubricant for the water pump and contains inhibitors that prevent rust and corrosion on metal engine parts. Key Differences: Antifreeze vs. Coolant

While often used interchangeably, there is a technical distinction: