Hose life....

I knew that coolants tend to get acidic when the additives wear out. The big truck maintenance shops use test strips in the coolant to check to see when it is becoming acidic. When it does, the coolant gets changed. I did not know the Dexcool was particularly bad about that; sounds like I have some reading to do there.

I have started using G05 in just about everything. That has been adopted by Mopar for years. The only drawback is that when you mix it 50/50, it has very little color to it.

The brittle tractoro hose story is a good one, Yote.