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What is a coolant?


What is a coolant?
A coolant (also called an antifreeze) is a special fluid that runs through your engine to keep it within its correct operating temperature range. It is made from either ethylene glycol or propylene and is usually green, blue or even pink in colour.

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How does a coolant work?
Your car’s engine produces a lot of heat when it is running and must be cooled continuously to avoid engine damage. The cooling system in your car works by sending the coolant through passages in the engine block and heads. As the coolant flows through these passages, it picks up heat from the engine. The heated fluid then makes its way through a rubber hose to the radiator in the front of the car. As it flows through the thin tubes in the radiator, the hot liquid is cooled by the air stream entering the engine compartment from the grill in front of the car.Once the fluid is cooled, it returns to the engine to absorb more heat.The water pump has the job of keeping the fluid moving through this system of plumbing and hidden passages.

Why Coolant is Important
Without a coolant, the heat produced through constant internal combustion would destroy the engine very quickly. Water alone is not enough to keep the system cool, for the high temperatures inside the motor would eventually boil and evaporate it entirely. Likewise, in very cold weather, the water would freeze when the car is sat idle, rendering the cooling system useless. A coolant is therefore important as the synergy between glycols and water enable it to perform in cold and hot environments, all year round. The extra additives present in a coolant also provides protection against corrosion.

Just as you would with lubricants, the coolant in your car’s cooling system needs to be inspected regularly, to be sure that you have enough. Our antifreeze and engine coolant help protect your engine from severe and serious damage.

Because not all coolants can be mixed, please check your owner’s manual to find out which coolant is suitable for your car and how it should be applied.

Rymax Antifreeze and Engine Coolant
Our antifreeze and engine coolant help protect your engine from severe and serious damage.

Dione BS
Antifreeze and Engine Coolant

  • It provides a high degree of corrosion protection for all engine cooling systems whether they are predominantly of aluminium or ferrous construction.
  • Dione BS is a mono ethylene glycol based product which has been specifically formulated to be truly universal in its application.
  • Comes in ready-to-use (-36ºC) and concentrate

Dione G12+

  • Excellent hard water stability and very low inhibitor depletion rates.
  • Comes in ready-to-use (-36ºC) and concentrate

For more on Rymax antifreeze and engine coolants, please click here.

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