What Type of Coolant to Use for Your Car?



What Type of Coolant to Use for Your Car?


Coolant is a mix of antifreeze compound, inhibitor package and water. The coolant is an important fluid in your car that protects your engine from overheating and corrosion. Using the right coolant type is important to keep your car’s engine in good health. If you use the wrong type of coolant, your engine will get damaged by overheating. To make things easy for you, we have provided important information about different coolant types.


Types of Coolants


IAT Coolants


IAT is an acronym for Inorganic Acid Technology. In coolants, it refers to the inhibitor package it contains. IAT coolants are low-silicate based products that need to be mixed with water. After dilution with water, you need to pre-charge the coolant by adding SCA (supplemental coolant additives). IAT coolants need the addition of SCA after every 25,000 miles.


OAT Coolants


OAT is an acronym for Organic Acid Technology. OAT coolants are new types of coolants that do not contain any phosphates or silicates. Instead, these coolants have organic acids and compounds like 2-ethyl hexanoic acid and sebacate. OAT coolants are considered as extended life coolants. They have a long service life of 600,000 miles or 12,000 engine hours.


HOAT Coolants


HOAT is an acronym for Hybrid Organic Acid Technology. These coolants are a combination of IAT and OAT coolants. In other words, they are low-silicate based products with nitrite technology. You need to add SCA in HOAT coolant at the first service interval of 25,000 miles.


Why You Should Never Go by the Color of Coolants


Coolants are available in a wide range of rainbow colors. There is no standardization of the color scheme followed by coolant manufacturers. For example, IAT coolants are available in green, yellow and blue color. OAT coolants are generally orange in color but several new OAT coolant brands have green or yellow. Thus, color cannot be a factor to choose the right type of coolant.


Is it Right to Mix Different Coolants?


No, it is not right to mix different coolants. By doing so, you are only reducing the performance and service life of the coolant. If you mix incompatible coolants, it might lead to overheating of the engine and corrosion of engine components.


How to Know the Right Type of Coolant to Use for Your Car?


If you are unsure about the right type of coolant for your car, go to your car dealership and request information. Car dealers generally stock OEM coolants recommended by car manufacturers and you can easily get the right type of coolant for your car at such places. If the car dealership is far away or you don’t have the time to visit your car dealership, you can read the car owner’s manual to get the required information. The car owner’s manual contains information about fluids to use in your car.  


The market is flooded with aftermarket coolants for different car manufacturers. Aftermarket coolants don’t mention the coolant type in bold but they do mention the name of the car manufacturer on the packaging. This can prove useful to pick the right type of coolant to use for your car.




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