What's the beef with dex-cool? Earlier this summer I changed the
antifreeze in my 05 Hemi Durango with 140,000 miles. We were getting ready for a road trip, and it occurred to me, I've only popped the hood 4 or 5 times, and have never checked the
antifreeze. I was afraid that I would find something resembling over cooked red beans and rice. To my knowledge (I've owned it since new) that's the first time the cap has been opend, and the stuff looked new. It was crystal clear without a speck of rust or sediment.
I think I remember reading that it'll give you problems if your system isn't sealed, or your puke tank is actually being used by the cooling system, but in a properly designed and maintained system, I can find no fault in the stuff.