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Originally Posted by Jaxonalden
FYI;
A 1:1 mixture of ethylene glycol based anti-freeze and water raises the boiling point of coolant to 225 degrees, from 212 of straight water.
A 15 psi coolant system in turn raises that same coolant boiling point to 265 degrees.
Above those temps the coolant can't cool the engine any longer because the boiling (bubbles) actually insulates the coolant from the metal surface (cylinder) and engine temperature then raises (fast!) to the melting point of the pistons.
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Most of you never knew MNBoxster, but if he had read this I am sure he would have countered with all sorts of physics-based opposition just to be contrary!
Jaxon, thanks for this info. I love learning these kinds of things from everyone here on my home away from home, 986forum.com.