[DeTomaso] Radiator Dilemma

[B. SEIB]

Lots of good info here Dennis:

http://www.no-rosion.com/tech_coolant.htm

 No-rosion says distilled water should not be used as straight water
coolant, because it can cause damage to system metals. The reason has to do
with how distilled water is created. 

During  the distillation process, water is vaporized into its gaseous phase,
so all impurities are left behind.  These impurities include a number of
minerals, including calcium and magnesium, the two components of hardness.
The water is then condensed back into its liquid phase, so the resulting
liquid is pure water. In fact, some of the purest water on earth.  The
problem is that distillation strips impurities from water, resulting in
water molecules that are electrochemically imbalanced. So distilled water
will actually strip electrons from the metals in a cooling system as it
attempts to rebalance itself electrochemically. This can result in damage to
metals in a cooling system. 

Using distilled water in combination with 50% antifreeze effectively cuts
the amount of distilled water in half. By compounding with glycol, it will
not cause damage to metals in a cooling system. For this reason, it is safe
to use distilled water in a 50/50 mix.

Barry

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Dennis Valdez sjcarguy60 at yahoo.com 
Mon Aug 15 20:02:31 EDT 2016 

 Interesting topic.  I have a fluidyne radiator in my car installed by the
PO several years ago. No leaks at all at this point. I bought a zinc anode
and plan on putting it in on the next flush:Here is the one I bought from
Amazon  
Are most people using distilled water mixed 50/50 with coolant?
I seem to recall reading either on the PI forum or in the newsletter that
tap water is better.  
Dennis