quote:You just have to make sure that you flush the system good to get all of the other stuff out.
Not true. They are compatible, but the standard green will compromise some of the effectiveness of the red.
quote:Maybe that's the same stuff?
Yes, they are the same.
Before switching to the red (Dex-Cool) you may want to do some Google searching. There were several class-action suits on the early GM use of Dex-Cool as they put it into vehicles that had incompatible gaskets.
On top of that issue, when it is exposed to air it will create a precipitate (black, gunky slime) that is not nice to have swirling around in your cooling system. Test this yourself by checking your late model GM vehicle. See a funny discoloration in the overflow tank, or under the pressure cap?
Yes, I know there is not supposed to be air in a cooling system, but what should be and what is are often not the same.
Again, if thinking of switching to the red, I'd arm myself with some Google info.
I did, and I'm thinking of switching back to the green on our 2001 Astro.
Larry