Dex Cool Coolant ... It's Bad News

[KJRich]

My dad has a '98 Chevy Venture van with the 3.4 V6. It has over 217,000 miles on it. It has had Dex-Cool in it since it was brand new. There are no problems with this one. Of course, the Dex-Cool has been changed more often (probably every 2-3 years) than the recommended 5 year interval, too.
I've read a lot about the problems with Dex-Cool, but then I look at his van and I don't really know what to believe.

[jayson716]

well i have never had a problem other than blowing up the motor but when i pulled it out the insides were clean flushed out radiater and put Dex cool back in and still no problems.

[Screwtape]

Originally Posted by C_Sephiroth

Well Whoever you are talking to doesn't know SHIT. Dex Cool Is less acidic. it has an average ph of about 8 and the Green stuff has an average of about 10-11 (Lower #'s GOOD).

in the ph scale, 0 is more acidic than 10-11

[4dr92cavi4cyl]

Yup, 0-6.9 is acidic, the lower, the more acidic. 7 is nuetral. 7.1 to 14 is basic. Why would they make this sh!t if it burns when low, freaking stupid engineers. No, GM is wrong, this stuff is NOT going to save people money, unless they have some knowledge of cars and actually look under the hood once a week, this stuff is going to COST these auto-ignorant people money.

[tom3]

No doubt the main purpose of this antifreeze is to keep people out from under the hood of their cars until the warranty is certainly over with. What happens then is out of your wallet. Dare say the majority of owners have no problems with Dexcool, but those who do have serious, expensive problems. I'd rather have a routine maintenance item that I can rely on.

[KJRich]

I just change it more often than they tell you to.

[movin2stereo]

Don't mix,this is true.All it takes is someone to add a little green to your red and you will have a mess.This should be made aware to all people because most people don't read their manuals or the info labels under the hood.Just as scary many backyard mechs don't either.

[dobach4]

For everyone wondering if Dex-Cool is good or bad. There is a class action law suit against GM for the damage that Dex-Cool causes to engines and cooling systems. I personally have a 2001 Venture and the radiator and cooling system was full of sludge. The Dex-Cool also causes the seals to leak after about 80,000 miles.

[Blue Bowtie]

Interesting news, but this thread was started over 3½ years ago. It would be better to start a new thread.