![]() Organic acid technology (OAT) engine coolant is usually orange in color, but it can come in other colors like dark green. OAT engine coolant is made with a propylene glycol base. IAT formulas contain silicates, which protect your car’s engine by inhibiting the effects of corrosion. If your car requires IAT coolant, you will need to flush it and replace it approximately every two years or every 24,000 miles. As an older formula, it is not as efficient as some newer types of engine coolant. It’s used in older vehicles, typically cars manufactured in the United States before the late 1990s. It is made with ethylene glycol with silicate and phosphates added to prevent corrosion. Six types of engine coolant are: Inorganic additive technology (IAT) You should always use the variety recommended for your car. Coolant varieties are categorized by name and color. Which Engine Coolant for My Car?ĭifferent types of engine coolants are specifically engineered for different types of vehicles. As the car heats up, the coolant system valve will allow the coolant to flow through the radiator. When you first start your car, allowing the engine to warm up, the coolant will bypass the radiator. A pump will send engine coolant to your engine block when the car is running.įrom there, the coolant will run to the car’s radiator, also called the heat exchanger, and then back to the pump. The coolant system works as a simple loop. From that reservoir, coolant flows into and circulates through the engine block, protecting your vehicle from extreme heat or cold. Your car’s radiator has a reservoir that stores engine coolant. Engine coolant comes in several different varieties, but its basic ingredients include ethylene or propylene glycol and water. True to its name, engine coolant, aka antifreeze, does not freeze in sub-zero temperatures.Ĭommonly referred to as antifreeze, engine coolant contains ingredients that help prevent corrosion of your car’s engine parts. Coolant prevents both overheating and freezing. During the winter, extreme cold can cause your engine block to freeze and even crack. The coolant absorbs the heat from the car’s engine and circulates back to the radiator. Your car’s engine runs hot while in use, hot enough to damage essential parts. Coolant helps protect your engine from extreme temperatures, both hot and cold. What happens if I use the wrong coolant?Įngine coolant keeps your engine from overheating and helps you avoid a costly repair bill.What are the 3 different types of engine coolant?.Do I need certain type of engine coolant?.Hy-per Cool Radiator Cleaner and Super Flush.How Can I Best Protect My Car’s Engine?.
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