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Distilled water can be very corrosive. "Pure, deionized water is
looking
for ions, and it will take them out of the aluminum in your
radiator"
Why are you using distilled water? Using strait distilled water
is
probably a bad idea. What is wrong with tap water? Also antifreeze
only
lowers the freezing point of water it also increases its boiling
point.
Antifreeze usually also contains about 2.5% anti corrosion and
foaming
agents.
Alex Madsen
De-ionized water would
certainly be a bad idea. We use water cooling in some of our MRI systems,
and a handful of the machines have turned the water a rust color for "some
reason". The best we can figure, is that some of our field engineers don't
know the difference between distilled, and de-ionized water. They're
supposed to use distilled, but I think they're using de-ionized instead.
Funny how the rust stops when we verify that the system is flushed, and filled
with the correct water.
As for tap water, you
risk the chance of coating the inside of your system with mineral deposits,
depending on how bad your water is. Distilled is fine for short periods of
time, but I wouldn't run it for long, without some sort of additive, such
as Redline water wetter.
Now, I have to admit that I didn't realize
20% coolant could increase the boiling temp to 253. I have to wonder
if these charts are showing boiling temp at cooling system
pressure.
I just did some surfing, and have come to
the conclusion that the best year-round mix for me will be 20% antifreeze, plus
8oz of water wetter.
Cheers,
Rusty (less coolant challenged than
before)
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