Dexcool

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Nighthwk12

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So back in my 3800 days. Dexcool was the devil (unfounded or not). What are you guys running after a coolant flush? Back to Dexcool or something else?
 

BG1988

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So back in my 3800 days. Dexcool was the devil (unfounded or not). What are you guys running after a coolant flush? Back to Dexcool or something else?
the issue was sealant tablets were being installed without consent at dealership this fudged up the cooling system...

I use Dexcool as well

the level does move up and down but that is totally due to liquid thermal density
 

drakon543

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also when dexcool was first being used it didn't jive well with most off the shelf coolants. so people would top off the coolant with whatever they were using. i think there's something wierd about the coolant thats in subarus also. like a purple colored coolant too.
 

Foggy

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DexCool in all my GM oem dexcool outfitted cars
Nothing wrong with it...
Got a bad rap due to it being "long life".... NO Coolant is good for 5 years...
I don't give a **** what the mfr says..
So between dex getting mixed with old school green and Never being serviced,
it either turned to mud or starting eating up gaskets...
Both totally preventable
 

akbrener

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Funny that my GM dexcool experiences started with my 3.8 camaro. Seememed like the orange stuff was the worst thing in the world. I have almost 200K on my 08 tahoe and still run the orage dexcool stuff with no issues. just dont mix with the green stuff and should be fine
 

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