steve58

Yea I have orange Anti-Freeze in my Radiator,, Along with a fairly new Radiator and water pump,, the thing runs nice and cool ,,thats why I never worried about it.

I bought it like this,,,now I am wondering WTF ?

Boss_Hotrod

I dont know if if really matters as long as all the coolant is dexcool. Im running honda coolant in my stang (got it free from work...). I dont have any colling trouble granted ive got a radiator in it that would cool a tank!

steve58

Yea, sorry I meant Dexcool,, I run it in my 98 Chevy pick-up.

mjr46

hmm looks like you got atf and antifreeze confused, let me fix that for you, either way it shouldn't matter

93stallion302

doesnt matter as long as u have coolant in there. I myself prefer dex-cool over conventional anti-freeze.

mjr46

dex-cool keeps me in bussiness with what it does to gm gaskets..lol

93stallion302

mjr46

done plenty of 3.1 and 3.4 liter intake gaskets , dexcool eats them alive^^^

93stallion302

Why is that, If I may ask?

mjr46

well ,the way a gm rep explained it to me in a class I had a long time ago, not sure if it's true or not but the compound make up of dexcool reacts with the metals and gasket material and deteriorates it over time when dexcool is exposed to the atmosphere, via leaks.......it also sludges if not serviced at proper intervals, the 3.1 and 3.4 intake gaskets were of plastic and rubber construction and over a period of time and numerous heat cycles coupled with the dexcool reacting with the materials they deteriorate and spring leaks in the corners, the worst one I did was a malibu last year, when I removed the intake the leaks had sprung internally and had plugged up the oil drain back holes in the heads and filled the intake with globs of soft pasty sludge due to mixing with oil, we used a special air powered suction gun and funneled the crap into a paper bag, what a mess!!!