Originally Posted by neil
My cooling system appears very clean and my EOT/ECT differential is completely normal. So with 82K miles I just drained and refilled with Zerex G-05 coolant although I really wanted to use ELC. I just didn't want to mess with flushing and the real possibility of actually causing the oil cooler to become blocked.
So now I have G-05 (50/50) and some Fleetguard Optimax Pre-Mixed (50/50) ELC in my garage. I'm gonna mix up a half quart of each and see what happens over time. I suppose I'll have to heat it up on occasion to 190 on the old stove in the garage to simulate the engine heat. Perhaps stir it once in a while. Can't really create the 16psi pressure though.
Well if you use your truck for a grocery getter and don't pull anything the Ford or G-05 will work but should be flushed ever 30k because in the long run it will get you, because with all the oil cooler problems on ALL the forums it has to say something about the Ford Gold Junk. Ford even has said you must change at 50k and not the 100k as stated in there books that should tell you something that they don't have a lot of faith in there coolant when it come to the 6.0 but they will not say there is a problem with it, what a joke just like the fuel problems with the new 6.7 even the 6.4 you have to eat the $10,000 cost at 35k with warranty for a new fuel system what a joke. So i will do everything to keep mine running right my deltas are ECT 192-194* EOT 200* when pulling add 10* to each.