I know this is an old-lost thread... but I wanted to add something.


First, I do not think the majority will be able to get 20-30 years to a plastic radiator regardless of the coolant used. But, within this thread there was always the question on what makes G05 coolant different?

It's quite simple, the buffering ability. It's not the ethylene glycol content. Get some ph papers and check to make sure the coolant is neither acid or basic. As it ages and reacts with electoylsis byproducts- it becomes more basic. You'll find the MB coolant does buffer better for 2-3 years.

That's the short of the "Stu Ritter" explaination I got- he was a chemist in college and actually checked PH of the coolants.

M