What is engine coolant?

Platt's Performance Plus • February 22, 2023

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The engine cooling system, including the engine coolant, manages some of the heat, transferring it from the engine to the atmosphere. In the winter, some of that heat even keeps you warm inside your car. If engine coolant in your Toyota, Ford, Chevy, or other type of vehicle isn’t working properly, the engine might not maintain proper temperature, which can affect performance and fuel economy.

For the most part, engine coolant doesn’t “wear out,” but it can happen. Mechanical problems can lead to a loss of coolant, which can then trigger major problems.

Low engine coolant can cause overheating and engine damage. Used coolant can turn acidic— even newer long-life coolant— as it attacks the metal, plastic, and rubber parts of your engine cooling system. 

Regular coolant inspection is a key step to maintaining your engine for the long haul.

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