What is coolant in a car?

Coolant, also known as antifreeze, is a liquid substance used in a car's cooling system to regulate engine temperature and prevent overheating. It is typically a mixture of water and ethylene glycol, although other types of coolant exist as well.

Coolant circulates through the engine and absorbs the heat generated by combustion, helping to maintain the engine at a steady operating temperature. It also prevents the engine from freezing in cold weather and protects it from corrosion and rust.

It is important to regularly check and maintain the coolant level in your car to ensure that the engine remains properly cooled. If the coolant level is low, it should be topped up with a mixture of coolant and water according to the manufacturer's specifications.

Coolant should be flushed and replaced periodically, as it can become contaminated and lose its effectiveness over time. Most manufacturers recommend flushing and replacing the coolant every 2-5 years, depending on the type of coolant used.

In addition to the coolant itself, it is also important to check the radiator, hoses, and other components of the cooling system for leaks or damage that could cause the coolant to leak out. If you notice any signs of a coolant leak, such as a puddle of liquid under your car or steam coming from the engine, it is important to have it inspected and repaired as soon as possible to prevent serious engine damage.