I agree! And I'm NOT trying to argue...except just a little bit... My question to BOB was SO WHAT? If both do take the heat out and the engine doesn't overheat..SO WHAT? All the engineer graphs show EG doesn't capture the same amount of heat...SO WHAT? It works fine in Texas and also on the Arab desert..
My point is the graph may be correct...to a point. But that point isn't reached in Texas or the Arab desert. as a coolant in lots and lots of vehicle engines pure EG works fine. I am testifying to this fact.
Now get me somebody that will testify to the opposite..other than a chart made by folks nobody knows.
I have only heard of one engine that froze and busted with pure EG in it...and that guy was in Alaska. He was on a Jeep site where I hang quite a bit.
In fact using pure EG one doesn't even need a pressure cap. The stuff doesn't boil until bout 450* is reached.. So you may lose an engine but you would KEEP the coolant.. Funny thought ain't it?
Just a guess but I'm thinking maybe my thermostat opens just a small amount wider to allow more flow than it would with straight water in the system.
Big JIm