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The Purpose of Coolant

The primary function of a coolant is to transfer heat away from the combustion in the engine. It is also imperative to protect the metals in the cooling system against corrosion.​


The primary function of ethylene glycol in the coolant is to offer anti-freeze anti-boil protection. Water is an active heat transfer fluid by itself. However, it has a limited operating temperature range. When combined with Glycol, the formulation offers a lower freezing point & a higher boiling point than either fluid used on their own.


Types of Coolants

Coolants are classified as either Type A or Type B depending on the level of glycol they contain.


Type A Coolants

  • Contain above 20% glycol content

  • Offer anti-freeze anti-boil protection

  • Nearly all new car manufacturers will recommend a Type A product


Type B Coolants

  • Contain below 20% glycol content

  • Offer minimal or no anti-freeze anti-boil protection

  • Typically they are referred to as corrosion inhibitors


Organic Vs Conventional Coolants

Conventional style coolants are created using older technology but have a solid performance history. This traditional type of coolant will have a shorter lifespan than organic & is suited to earlier model vehicles.


Organic coolants are manufactured using a new process referred to as Organic Acid Technology (OAT). This process provides the ability to along lifespan due to low chemical depletion rate.


Note: Conventional & organic style coolants do not mix well together.



There are many types of corrosion that can occur in a cooling system, which is why a coolant with a good quality corrosion inhibitor package is required. Tectaloy coolants all contain an inhibitor package that provides maximum protection against corrosion.

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