You shouldn't use distilled water in an aluminum radiator? This is news to me.... - Ford Mustang Forum
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post #1 of 31 (permalink) Old 07-04-2009 Thread Starter
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You shouldn't use distilled water in an aluminum radiator? This is news to me....

I just read the directions on the back of a bottle of Purple Ice and it says not to use distilled water in an aluminum radiator.
What then do you use.....regular bottled water? Why can't you use distilled water in an aluminum radiator???? What harm would it do????

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post #2 of 31 (permalink) Old 07-04-2009
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I believe that's only if you elect to run straight water and wetter. Without any coolant.
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post #3 of 31 (permalink) Old 07-04-2009
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hmm... i dunno.

what he said ^^^^^^^^^^^^

but i dont normally stock distilled water at home lol
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post #4 of 31 (permalink) Old 07-04-2009
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I have used tap water and Water Weter in all of my racebikes (30+) and at one point I had two $12K radiators. All the bikes sit, untouched from Oct 1- at least March 1 every winter and I have never, ever seen anything resembling corrosion.

My Mustang has had tap water and that gold Ford coolant in the alumium radiator and heat exchanger in it since Sept. 06' and the car sits from Nov-Mar every winter and never gets started. It also has zero corrosion.

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post #5 of 31 (permalink) Old 07-04-2009
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I can't imagine. The theory behind using distilled water is to eliminate the impurities in tap water that can cause corrosion in your coolant. The coolant acts like electrolyte in the battery and I remember a test where you would use a voltmeter with the + end in the coolant and the - end to ground and check for voltage. More that a certain amount and the coolant needs changing. I don't remember the exact voltage, but it is a measure of electrolytic activity.

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post #6 of 31 (permalink) Old 07-04-2009
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I use distilled water in my radiator. Makes no sense why they would recommend against it.

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post #7 of 31 (permalink) Old 07-04-2009
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Quote:
Originally Posted by stlwagon View Post
I use distilled water in my radiator. Makes no sense why they would recommend against it.
because of rebels like you
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post #8 of 31 (permalink) Old 07-04-2009
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because of rebels like you
I've used it in every car I've ever owned. Helps prevent scale build-up in the radiator.

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Last edited by stlwagon; 07-04-2009 at 03:54 PM.
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post #9 of 31 (permalink) Old 07-04-2009
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I think the warning is corrosion related. Probably because distilled water is partially deionized and it will want to steal ions from the aluminum radiator. With coolant it's a non issue.
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Quote:
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I think the warning is corrosion related. Probably because distilled water is partially deionized and it will want to steal ions from the aluminum radiator. With coolant it's a non issue.
Distilled water is 2 hydrogen atoms and 1 oxygen atom (H2O), that is all. Tap water is ???

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Quote:
Originally Posted by duckbubbles View Post
Tap water is ???
Laced with mind control drugs that makes people like NASCAR and Wrestling. Good thing it’s not 100% effective.

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Quote:
Originally Posted by duckbubbles View Post
Distilled water is 2 hydrogen atoms and 1 oxygen atom (H2O), that is all. Tap water is ???

Frank
I'm not a chemist so bare with me as this is how I understand it. Pure water has a slightly negative charge. H+ HO- . Aluminum will happily give up 3 electrons. Minerals in water like magnesium, calcium, and sodium have positive ions and neutralize tap waters charge.
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Most drinking water have biological containments, inorganic chemicals, organic metals, oils, grease and 2,00,000 other deadly commercial chemicals. There is a huge presence of drugs in drinking water including painkillers, tranquilizers, antibiotics, anti-depressants and birth control pills.

Drink up!



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Laced with mind control drugs that makes people like NASCAR and Wrestling. Good thing it’s not 100% effective.

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Quote:
Originally Posted by Bob05GT View Post
I just read the directions on the back of a bottle of Purple Ice and it says not to use distilled water in an aluminum radiator.
What then do you use.....regular bottled water? Why can't you use distilled water in an aluminum radiator???? What harm would it do????
I can address this issue from personal experience. I had always used distilled water in my vehicle cooling systems and never had any trouble. In 1985 I started building a show truck and bought a ZZ4 crate engine with aluminum heads and an aluminum radiator and as usual I filled it with distilled water. Less than 13 months and 20,000 miles the engine started showing steam from the exhaust and I began to lose coolant. Upon investigation I found that both the heads and the radiator were perforated as a result of electrolysis cause by the ionized distilled water. If you must use distilled water it is recommended that you use only de-ionized water.

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Quote:
Originally Posted by sqidd View Post
I have used tap water and Water Weter in all of my racebikes (30+) and at one point I had two $12K radiators. All the bikes sit, untouched from Oct 1- at least March 1 every winter and I have never, ever seen anything resembling corrosion.

My Mustang has had tap water and that gold Ford coolant in the alumium radiator and heat exchanger in it since Sept. 06' and the car sits from Nov-Mar every winter and never gets started. It also has zero corrosion.
Do you use a water wetter. I wondered about this stuff,is it just a gimmick?

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