Antifreeze, also known as engine coolant, is a fluid added to the cooling system of an internal combustion engine to lower the freezing point and raise the boiling point of the water in the system, allowing it to transfer heat more effectively.
This helps protect the engine from freezing and overheating, particularly in extreme temperatures. Antifreeze also contains corrosion inhibitors to protect the cooling system components.
There are two main types of antifreeze: ethylene glycol-based and propylene glycol-based. It is important to use the correct type of antifreeze recommended by the vehicle manufacturer and to regularly maintain the coolant level and condition to ensure efficient engine operation.
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