the guy says he is not a salesman for Evans, but he sure sounds like it !!!! ya coulda fooled me !!
It is a cover-up. The 'other ppl on the side of the road' have some kind of mechanical issue that needs to be fixed, not covered up by a coolant that boils at a million degrees. They need a re-core, adjust timing, get that danged front license tag out of the way of the rad, get rid of the leaky head gasket that is allowing exhaust gas into the water jacket, etc, etc.
Why am I able to drive around Texas all summer without that stuff??