ifferences between antifreeze and coolant.
The terms antifreeze and coolant are usually used interchangeably, however there is a technical difference between them. Antifreeze is a concentrated glycol-based liquid that mixes with the water in the engine's cooling system to prevent it from freezing.
It also lowers the boiling point and prevents overheating and corrosion of metal engine parts.
When diluted with water, the solution is called paraflu. Most of the time consumers turn to buying prepackaged i.e. ready premixed engine coolant due to convenience.
What coolant should I use for my car?
The three main types of refrigerant based on composition are:
IAT (Inorganic Acid Technology)
OAT (Organic Acid Technology)
And HOAT (Hybrid Organic Acid Technology)
All are based on glycol.
Inorganic antifreeze (IAT), also known as "conventional" coolant, uses phosphate-silicate additives to form a protective barrier over engine parts made of metals such as cast iron, copper, and brass. Most older vehicles built before 1998 use this coolant technology. The main disadvantage of IAT types is that although they work quickly, they tend not to last long, requiring replacement every 2 years or so.
Most newer models use OAT types. They use organic acids to protect the engine from oxidation, as well as advanced additives. This type is much more effective than conventional products and has a longer lifespan. However, OAT automotive antifreeze does not protect copper and brass, so it is incompatible with older vehicles. It should not be mixed with other types, as this will cause blockage in the radiator of the car's cooling system.
HOAT coolants are improved products that combine the properties of IAT and OAT fluids.
The simplest way to find the right one for your car's requirements is to check the manufacturer's recommendations in your owner's manual.
How often should I change my car's antifreeze?
Most mechanics recommend changing the coolant every 30 miles or so. The antifreeze/antifreeze replacement interval also depends on the type and additives used, as well as other factors such as the age of the vehicle and the driver's driving habits.