Quote Originally Posted by migueld View Post
Hmm my guess is that he is using an alu radiator and no proper coolant. 4 months is an extremely short amount of time for that much nasty corrosion... if that's the result of the GTX alone then a lot of people are in trouble.
Actually, if he had an Aluminium radiator there would have been less corrosion of the top as the radiator, having much larger surface area, would act as a sacrificial anode. However, if the base and the top are electrically connected (metal screws?) then there may be no way around this other than by using the required anti corrosion additives.