DEX COOL is the worst, within 5 days of owning my GTP I had it flushed and refilled with the prestone(yellow) extended life...
Here's some dex cool info if your still undecided...
The potential role of DEX-COOL®
for descriptions of problems from everyday people, check this site, be prepared, theres lots of incidents to read...
Consumer complaints about DexCool in GM Engines
you must also know that gm finally settled a lawsuit pertaining to those who suffered losses due to the use of dex cool.... Maybe some here are owed a little off the suit.
Dex Cool Litigation Website
or here...
Summary of the GM DEX-COOL—Class Action Tentative Settlement
if your still in question about dex cool, then ask your local dealer if any of the new cars come with dex cool in them....they don't, it's not been in any new cars since 04....
I highly recomend flushing that garbage out, and then doing so again every 500 miles or so until the brown sludgy garbage is no longer visible... for a good antifreeze try the prestone ext. life, it's yellowish and mixes with anything, so far I've heard of no problems with it...
good luck
