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Old 12-08-2008, 03:55 AM   #22
Jaxonalden
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Join Date: Mar 2008
Location: Oklahoma City
Posts: 1,209
Garage
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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