Well that blows what Ive been told then. I was told I think shortly after getting my GP and when I was looking for a cooler that if the fluid wasnt up to 140* or something like that then the computer would disable overdrive.

Doesnt make a lot of sense to me, but thats what I was told.

With regards to the Duramx, yeah 115* after three hours of driving, that is some dang fine cooling there.