For a 15 psi cap, the boiling point of a 50/50 mix is
264F. For straight water, it's 250F. At a lower
pressure cap the gap is smaller. Sooooo....in the
case of the 7 psi cap boiling at 220 - 225, the system
is boiling earlier than it should. If had any
anti-freeze at all in there, the boiling point should
have been even higher.
--- Nory P <firstname.lastname@example.org> wrote:
> You can't say a given radiator with a given pressure
> cap will overheat at a set number of degrees -- it
> would depend on the coolant mix (assuming nobody is
> crazy enough to run straight water), right? Doesn't
> the coolant make it boil at a higher temperature?
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