Distilled water instant of coolant?

SVT_S5

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I live in a hot climate during summer (104-120F), never freezes in winter.

Can I run straight distilled water in intercooler and radiator instead of coolant, with water wetter of course.

Thanks guys!
 

olympic

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Coolant protects from corrosion and also raises the boiling point. You should run at least 30% coolant.
 

SVT_S5

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Understood.

Regarding the Intercooler, do I use 50/50
-70/30 on there also, or just running on distilled water and ww would be OK somehow?


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gimmie11s

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Id go with a higher water/coolant ratio. LIke 70 water/30 coolant as mentioned.

There are redeeming qualities in coolant, but more water in the hotter climates is what I run also.
 

IllCobra

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Based on where you live, you can run more water than coolant without issue. I live in FL and run a 70/30 mix plus a bottle of water wetter. I have heard running 100% water and a bottle water wetter would cool even better than 100% water alone. I just haven't dug any deeper to on how well WW does for lubrication and corrosion protection.

And if you're worried about keeping the cooling system happy, just do yearly coolant flushes. That will keep your system from becoming acidic.
 

SVT_S5

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Based on where you live, you can run more water than coolant without issue. I live in FL and run a 70/30 mix plus a bottle of water wetter. I have heard running 100% water and a bottle water wetter would cool even better than 100% water alone. I just haven't dug any deeper to on how well WW does for lubrication and corrosion protection.

And if you're worried about keeping the cooling system happy, just do yearly coolant flushes. That will keep your system from becoming acidic.

That’s what I was planning on doing, but got scared of the idea after what I’ve been told on this thread.

My plan was straight distilled water and 34oz of ww/ams coolant boost in radiator.


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IllCobra

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This. Distilled H2O will eat your cooling system. Trust me, I'm a chemist.
I thought an acidic build up comes from the chemicals in the coolant? So wouldn't more water be better to prolong that build up? I figured a 70/30 mix of water to coolant would be a good mixture to run for someone that doesn't live in a state that has freezing temps. Or would the 30% of coolant not be enough to prevent corrosion?
 

IllCobra

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That’s what I was planning on doing, but got scared of the idea after what I’ve been told on this thread.

My plan was straight distilled water and 34oz of ww/ams coolant boost in radiator.


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Heck, 34oz of WW might be too much. They claim a 12oz bottle will work for a 3-5 gallon system. If I am remembering right, our cars hold 4 gallons.... I would call someone from product support to see if there are any negative effects to running 3x more WW in your system
 

SID297

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That’s what I was planning on doing, but got scared of the idea after what I’ve been told on this thread.

My plan was straight distilled water and 34oz of ww/ams coolant boost in radiator.


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Unless you’re racing there’s no reason not to run a proper anti-freeze mix. A quality coolant will perform exactly as you need.

I thought an acidic build up comes from the chemicals in the coolant? So wouldn't more water be better to prolong that build up? I figured a 70/30 mix of water to coolant would be a good mixture to run for someone that doesn't live in a state that has freezing temps. Or would the 30% of coolant not be enough to prevent corrosion?

Without getting into a conversation about valence shell electron repulsion theory and ionic transfer, let me just advise you to run a proper coolant. There’s no reason not to in anything but a race car.
 

SVT_S5

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Yeah I’m not running straight distilled water, will use 30/70 and be done with it.


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SID297

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Yeah I’m not running straight distilled water, will use 30/70 and be done with it.


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There’s no practical advantage to running 30/70 (other than being cheap) over 50/50 but there are plenty of potential downsides.
 

SVT_S5

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There’s no practical advantage to running 30/70 (other than being cheap) over 50/50 but there are plenty of potential downsides.

Thought more water would cool better?!


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biminiLX

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Unless you’re racing there’s no reason not to run a proper anti-freeze mix. A quality coolant will perform exactly as you need.



Without getting into a conversation about valence shell electron repulsion theory and ionic transfer, let me just advise you to run a proper coolant. There’s no reason not to in anything but a race car.
On the race car theme straight water with water wetter and a sacrificial anode in the radiator (usually aluminum with a threaded bung or the drain) helps plus yearly flushes (reminds me I still need to this season).
-J
 

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