Shop Engine Coolant / Antifreeze. Find Radiator Fluid & Heat Transfer Fluid. Order Antifreeze Radiator Fluid. Explore Cooling System Fluid Replacement. Regular maintenance of your vehicle's engine coolant/antifreeze is paramount for optimal performance and longevity. Keep an eye out for signs of coolant degradation, such as rust-colored liquid or a high-temperature gauge reading, indicating it's time for a replacement. When selecting a new coolant, it's essential to match the type to your vehicle's requirements?options range from IAT (Inorganic Additive Technology) for older models, to OAT (Organic Acid Technology) and HOAT (Hybrid Organic Acid Technology) for modern engines. Premium-quality coolants offer advanced features like longer life cycles and superior corrosion protection. For seamless installation, ensure your system is flushed to remove old fluid and contaminants, allowing your engine to run cooler and more efficiently. Shop with us for top-grade engine coolant/antifreeze and keep your car in peak condition.