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Will Mixing Dexcool And Universal Antifreeze Be A Good Choice ?

There are certain situations where you may suffer an emergency and need to act fast. If you do not have any other option, you can mix Dexcool and universal antifreeze. However, it would help if you notice that this will form a gel, which eventually affects your engine’s cooling system. The orange and green coolants will never blend, and when they form the gel, the coolant will not flow as it should, which causes the engine to overheat.

Unfortunately, most car owners tend to ask such questions when it is too late, and their engines are already damaged. If you have to mix Dexcool with antifreeze at any point, you should ensure that it is flushed out and depleted entirely as soon as possible. This goes a long way to protect the cooling system and the engine at large.

Is Mixing Dexcool With Universal Antifreeze Good For Car Engine?

While it may not be the best idea to mix Dexcool with universal antifreeze, circumstances are forcing you to do so. The mixture may not damage your engine right away. As soon as you are out of danger, you should visit an auto shop and have the universal antifreeze removed. Many issues can be triggered by blending the Dexcool with any other coolant or antifreeze.

The universal antifreeze has its unique traits and is designed to respond synthetically. It takes the form of a gel and not a fluid, which affects its viscosity. As soon as antfreeze is used in your engine, it will start to erode the engine framework. Eventually, your radiator, water pipes, and the warmer centers are affected. If possible, mixing the two should be avoided at all costs.

What Is Dexcool? Difference Between Dexcool And Regular Antifreeze

Dexcool is a type of coolant that has been on the market for a couple of decades. The coolant has the same functionality as the antifreeze and works perfectly even in the cold months. Most people do not know that with Dexcool, you do not need to look for any other type of antifreeze for your engine.  

The critical difference between Dexcool and the regular antifreeze is the color as regular antifreeze is green while Dexcool is orange. Dexcool is made using organic acid technology, and GM claims that it extends your vehicle’s life. Regular antifreeze, on the other hand, is made of ethylene glycol and methanol mixed with water. 

Besides the great capabilities associated with Dexcool, it is said to cause a couple of problems to the engine. It corrodes the coolant pathways and damages the manifold gasket.

What Happens If You Mix Dexcool Antifreeze With Regular Antifreeze? How To Mix It

Our emphasis is that you should not try to mix Dexcool with regular antifreeze at all. The composition of this coolant makes it impossible to mix with other coolants. When the two are mixed, they will cause multiple engine failures as the coolant system is affected. Dexcool is effective on its own. Once mixed with other coolants, its integrity and efficiency are compromised.

If you want to mix Dexcool with regular antifreeze, here are the basic steps to follow:

Step 1: Purchase Dexcool

The first thing is to ensure that you have the right product to mix with your regular antifreeze. There are several places where you can purchase GM’s Dexcool, with Prestone and Shell being the most popular. If you are not sure, ask for assistance from an experienced expert.

Step 2: Make Use of Coolant Exchanger

It is recommended to have a coolant exchanger used as a replacement for the Dexcool. Several auto repair shops can provide the service.

Please note that it is best not to mix Dexcool with any other coolant if you can avoid.

How To Maintain Good Engine After Mixing Dexcool With Antifreeze

If you have mixed Dexcool with antifreeze, you should visit an auto repair shop as soon as possible. As mentioned before, this mixture forms a gel-like substance, which is not ideal for your engine. It is recommended that any vehicle with a combination of the two coolants needs to be flushed at least twice. This is to ensure that all the contaminants are completely removed from the system.

Failure to take action in good time will cause serious engine problems as your radiator is affected. The radiator may start to rust, so it is advisable to have it cleaned right away. By taking immediate action, you will salvage your engine and enhance the performance.


Q: What happens if you use the wrong color antifreeze?

A: When you mix the wrong colors of antifreeze, this will affect your engine’s performance. One of the typical results is the corrosion of the radiator, which impairs the overall cooling system.

Q: Is mixing Dexcool with green antifreeze the right choice?

A: Green antifreeze is the regular coolant, and mixing it with Dexcool is never a good choice. When those two are mixed, they will form a gel, which inhibits the coolant’s flow. The ultimate result is overheating of the engine and other related problems.

Q: What color antifreeze can be mixed?

A: Generally, you can mix two different colors of the same type of antifreeze. Mixing different types of coolants can be problematic as this corrupts the radiator and can trigger several engine problems.


With that said, you know that it is not a good choice to mix Dexcool with universal antifreeze. However, if you are in an emergency, you can use this option. As soon as you can, it would help if you had the system flushed and cleaned. Dexcool is a great option to use on its own. If you have a question, feel free to leave a comment. Please share this information with your loved ones as well.

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