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Does Antifreeze Expire? (Explained)

Updated: Jan 14

Antifreeze, also known as coolant, is a liquid used in automobiles and other equipment to regulate the temperature of the engine and prevent it from freezing in cold temperatures.

Antifreeze is typically made up of a mixture of water and either ethylene glycol or propylene glycol, and can come in a variety of different colors depending on the brand and type. One question that many car owners have is does antifreeze expire?

In this article, we will take a closer look at the shelf life of antifreeze, and discuss the proper storage and handling of this essential automotive fluid.


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antifreeze being poured into the coolant reservoir