"boiling removes heat" I have a hard time understanding that quote.

I was usually unconscious and drooling during chemistry class, so you'll have to ask someone who actually enjoyed it, and paid attention.  Seems like we have a couple of those sickos around here :-)

The one disadvantage I see in the 13b is that it can't handle the potential higher boiling point of PG.

Would any common auto engine be happy with 350 degree coolant?  I guess I never would have figured that would be good for them either.

Rusty (drool free at the moment)