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Q: Will it cause any problems to mix Dexcool with my regular green coolant. 1993 Ford Escort

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I put 16oz of dexcool in side the reserve 93 ford escort but it had green antifreeze in the radiator will that mess my engine up

My car has 74000 miles.
My car has an automatic transmission.

Hi there. It is not advisable to mix these two coolants together as they will tend to react with each other and cause some build up in the cooling system. Being that you only added 16 ounces you should be fine. If possible it would be a good idea to drain out the system and refill it, but you will be fine if you leave it in there. If you want to have your coolant changed, consider YourMechanic, as a certified mechanic can come to you to [change your coolant] https://www.yourmechanic.com/services/cooling-system-flush

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