株式会社 ズルフィカール モーターズ
Jul 24 2021

Mixing Coolants: What are the Risks For My Car?

 

Essential to the proper functioning of your engine, the coolant plays an essential role since it is it which allows maintaining the temperature while avoiding both overheating and freezing. And because it is also used to limit the risks of oxidation and lime deposits in the circuit, the coolant meets very precise composition criteria. it is therefore important not to neglect its level and quality. Here is why it is better to avoid mixing different colors of liquid with each other.

Coolant: Pink, Blue, Green, Yellow, Red?

While it's possible to find different-colored coolant cans among the many brands out there, there are actually only two main types of LDRs (it's faster, you'll agree): Type C which incorporates products of mineral origin, and type D or G, with products of organic origin.

As a rule, the second type (D or G) offers a longer service life than type C, and its protection efficiency is also higher. Blue or green LDR is Type C fluid, and all yellow, pink, or red/orange colored LDRs are actually Type D or G fluids.

Mixing Coolants: What are the Risks?

We advise you, to put it simply, to always use a coolant of the same color (and therefore of the same type) as that already present in your expansion tank for optimal efficiency, for the simple reason that it this is the liquid recommended by the manufacturer and therefore the most suitable for your vehicle.

In practice, it is possible that your fluid level is low and you do not have one of the same colors on hand. In this case, you can still mix coolants of the same type without risk: yellow with pink for example, since they are both type D or G. However, it is not recommended to mix type C and type D or G, because this can generate a precipitate leading to blockages in your cooling system.

Finally, do not imagine for a single second being able to pour water into it, since it absolutely does not allow good heat dissipation, and can lead to scaling of the circuit. Remember: top up with the ignition off and the engine cold, to avoid boiling and other extra-hot pressure when opening the expansion tank cap. Go, have a good trip!




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