-vital49, just wondering for certain what you mean about not seeing one incident about dexcool yet on this forum?
I have read all through this thread twice, and also the techinfo article on dexcool. It seems to me that overall good advice has been given. I found the tech info very interesting, and I have also read the same data from other sources too, when doing some research on this whole "dexcool-problem related" issue. (-also found it pretty interesting that FoMoCo decided that there was no real advantage to using the "O.A.T." -type of coolants.) By the way, there is tons of horror stories out there on the internet related to dexcool, and probably in all cases people have not been "anal" enough about keeping ALL OF THE AIR out of the system.
Seems to me the best advice is to simply stick with whatever the manufacturer has installed originally, whether it be green, orange, pink, red, -whatever. Consulting the owner'* manual is advice that is hard to beat. ALSO, keep it clean, NEVER add any stopleak to the dexcool, and ALWAYS keep the level withing the operating range on the coolant bottle, and NEVER run the dexcool beyond the 5-year limit.
Now if you want to get into my >personal< experience with the two different types of coolant, that is a whole story of it'* own. I will not use up the space here that it would take to adequately describe two of my HORRIBLE experiences with the dexcool. -absolutely HORRIBLE
. In ALL OF MY SEVERAL DECADES of automotive (and other) engine maintenance experiences I have NEVER NEVER seen anything in the "yellow/green coolant world" that even comes close. -and I have been around systems using the old green coolant that had never never been touched, and were still very clean.
But, bottom line for me is, I have stayed with the "OAT-compatible" coolant in my '99 bonneville. I was VERY TEMPTED to change, but decided against it. I did use the new Prestone "all-compatible" orange stuff, and I will keep a close eye on it.