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Old 04-21-2016, 08:15 AM   #5
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Quote:
Originally Posted by Heiko View Post
50/50 mixture is correct... tap water is fine... there are less impurities in distilled water that's all.
Not really. Tap water contains dissolved salts which degrade the performance of the coolant with heat cycles, leading to problems like corrosion and diminished freeze protection.
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