Automotive Q & A

Answer: Most of the energy created from your vehicle’s gasoline is converted to heat energy. Your engine produces large amounts of heat that must be controlled by your engine’s cooling system. A cooling system keeps your vehicle’s engine from overheating, but it also allows the engine to become hot very quickly and stay at a constant temperature. Engines are less efficient and more prone to pollution when they are cold. Cooling systems use fluid called antifreeze to control the engine’s temperature. Engine coolants must be able to withstand temperatures below 0 degrees without freezing and above 250 degrees without boiling. Water is very capable of withstanding heat, but it also freezes at temperatures too high to be suited for your engine. Therefore, your vehicle uses a substance called ethylene glycol, which improves boiling and freezing points; ethylene glycol is mixed with water to control your engine’s temperature. This substance is also called antifreeze. Antifreeze is typically 50% water and 50% ethylene glycol. It travels through the engine’s pipes and passageways to absorb heat and cool the engine. It also contains rust and corrosion inhibitors as well as lubricants. A cooling system flush and fill is very simple. Your vehicle’s old engine coolant/antifreeze is drained from the radiator, your cooling system is flushed, and new antifreeze is added to the radiator.

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