What is the Difference Between Coolant and Antifreeze


The regular combustion engine functions by burning a mixture of oxygen and fuel and high temperatures above 200 degrees. This explains why the combustion develops heat as it has to complete the fuel and oxygen burning process for more than 2000 times in a minute. To assist with expelling these hot gasses is the exhaust system, but to be expected the engine metals still absorb this heat thus requiring the engine antifreeze or the coolant that functions with the engines cooling parts.

The automobile engines are configured with the engine cooling system that assist circulate the coolant or antifreeze through the entire engine thus making for and optimum operation of the engine.

What You Should Know About Car Engine Coolant or Anti-freeze

Car engine coolant and antifreeze are produced out of great heat absorbing materials ethylene glycol and or polypropylene glycol to assist with getting heat off the engine parts. It is against this backdrop that distilled water and engine coolant get mixed at a 50/50 ratio. The engine coolant should be replaced and given a flush as the car manufacturer recommends.

Also there are chemicals in the engine coolant that keeps it from freezing on extremely cold temperatures; exactly where the ‘antifreeze’ term is derived from. Bear in mind that where the mixture of your coolant has more liquid than antifreeze, there’ll be the less effectiveness in reducing the freezing point during extreme temperatures.

People from some quarters assume that your engine running very cool is a function of increasing the ration of antifreeze to the distilled water when mixing itt but remember that the chemicals present in the antifreeze are made to expand as the heat. Where this happens the coils in your radiator are likely to break thus posing a greater overheating threat to the car. The recommendation is to blend your antifreeze with the distilled water at the normal 50/50 ratio.

What Are The Other Functions Of The Antifreeze and Engine Coolant?

The engine coolant/antifreeze have a wide array of duties other than just regulate the engine temperature. Let us consider some.

  1. This prevents the freezing of your coolant during the winter seasons.
  2. This lowers the boiling point of the engine coolant during the summer and keeps the coolant from boiling
  3. Keeps off corrosion on the metal parts of the cooling system
  4. Keeps the rubber and plastic parts intact.
  5. Assists in the reduction of electrolysis.

What is said to be An Antifreeze Electrolysis?

During the process of transportation through the engine in the cooling system tubing, water breaks down and some of its natural acidity is lost. This leads to the coolant getting charged this is the process referred to as electrolysis. Although it not much amount of charge in the coolant, it can result in wear out of some components like the aluminum. This situation causes a faster wear out than the usual. This situation can be avoided with a regular coolant flush as recommended by the manufacturer.

Is there a Difference between the Antifreeze and the Engine Coolant?

Although most people feel like they are the same thing, the antifreeze and the engine coolant are distinctively different. While the engine coolant is just a liquid substance that travels through the engine into the radiator and then goes back into the engine, the antifreeze is but a compound of a chemical that is put in the engine coolant to lower heat and the possibility of the engine coolant freezing in extremely cold seasons. Engine coolant or antifreeze has two types

  1. The Inorganic Acid Technology (AIT): This is locally referred to as yellow or green antifreeze. This type is used commonly and has the mixture of distilled water and often has a lifespan of 36,000 mile or three years.
  2. Organic Acid Technology(OAT): This is thought to be the longest life antifreeze or orange coolant. People think it can lost a long time upto 150,000 miles however it is advised you follow your manufacturers recommendation of coolant flush.
  3. Hybrid Organic Acid Technology(HOAT): The HOAT combines the AIT and the OAT and is usually termed the ‘global’ resulting from the rating of its certification that begins with the G.


1 Comment on "What is the Difference Between Coolant and Antifreeze"

  1. Antifreeze is used as a component to mix with coolant and is used to lower the melting point. And it helps prevent corrosion in the vehicle.

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