Why Is Antifreeze Used in Vehicle Radiators?
Radiators and coolant are essential elements for vehicles powered by internal combustion engines that produce heat. The heat must dissipate for the engine to continue operating. The radiator and cooling system are what removes heat.
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The Radiator
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Without the radiator and antifreeze--coolant--engines would overheat, the pistons would seize and cylinder heads would warp. The damage from engine overheating is destructive and costly. Radiators are made of a material, such as copper, which absorbs and dissipates heat. Tubes and thin fins mounted in a frame form the radiator. Antifreeze flowing through the radiator is cooled and recirculated through the engine block cool the engine.
Antifreeze
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Antifreeze is the modern engine coolant. The active ingredient is ethylene glycol. Mixed with water, it lowers freezing and raises boiling temperatures. Antifreeze also contains rust and corrosion inhibitors to keep the interior of the engine, radiator and hoses and pipes clean. Organic antifreeze is a new product made specifically for aluminum radiators.
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The Purpose
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The cooling system keeps the fluid from freezing when cold, boiling away when hot and the engine free of rust and corrosion. Its main purpose is to prevent engine damage from overheating.
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