Antifreeze is a liquid used in vehicles and machinery to lower the freezing point of water in the cooling system. It helps prevent the engine from freezing in cold temperatures and protects against overheating in warmer conditions. Commonly made from ethylene glycol or propylene glycol, antifreeze also contains additives to prevent corrosion and improve performance. In addition to its use in cars, antifreeze is also found in recreational vehicles, boats, and industrial equipment. It is essential for maintaining optimal operating temperatures and ensuring the longevity of engines. Properly mixing antifreeze with water is crucial for effective performance and protection.