Radiator coolant, also known as antifreeze, is a specialized liquid that circulates through a vehicle’s cooling system to regulate engine temperature. It absorbs excess heat from the engine and releases it through the radiator, preventing the engine from overheating during hot conditions and freezing in cold weather. In addition to temperature control, radiator coolant protects internal components from corrosion, rust and scale buildup, ensuring the longevity and efficiency of the entire cooling system. Regularly checking and replacing your radiator coolant is essential for maintaining optimal engine performance and avoiding costly repair.