Coolant vs. Water Question

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Oct 1, 2011 | 10:23 PM

LIGHTNING

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Melting Slicks

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From: NJ

Coolant vs. Water Question

If you run your C5 on pure distilled water for a few days in the summer, would this cause any corrosion problems with the aluminum engine?

Oct 2, 2011 | 01:12 AM

LoneStarFRC

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Quote:

Originally Posted by LIGHTNING

If you run your C5 on pure distilled water for a few days in the summer, would this cause any corrosion problems with the aluminum engine?

I seriously doubt straight water would hurt anything for a few days. Water transfers heat much better than coolant anyways. I would add Water-Wetter or similar though.

Living in a Southern climate, I routinely run 65/35 mix, with distilled water, not 50/50.

Oct 2, 2011 | 02:02 AM

Lothar34

Drifting

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From: Pearland, TX

Add a little bit of Marvel Mystery Oil to it to make sure the moving bits stay lubricated.

Oct 2, 2011 | 04:45 AM

ipuig

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Quote:

Originally Posted by LIGHTNING

If you run your C5 on pure distilled water for a few days in the summer, would this cause any corrosion problems with the aluminum engine?

If there is no possibility of freezing weather you can run it permanently with the right additive.

Oct 2, 2011 | 07:46 AM

Quicksilver Vert 01

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From: Somers, CT and Clermont, FL

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Quote:

Originally Posted by LIGHTNING

If you run your C5 on pure distilled water for a few days in the summer, would this cause any corrosion problems with the aluminum engine?

Using distilled water, I very much doubt that any corrosion would occur in just a few days.

I would be more concerned about boil over. Even with a working 18 PSI pressure cap, pure distilled water will boil at only 222 degrees. C5's will often run even hotter than that in the summer months.

Oct 2, 2011 | 08:10 AM

AU N EGL

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From: Raleigh / Rolesville NC

Unless your running a race engine, no need for 100% water.

Oct 2, 2011 | 11:39 AM

ipuig

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Quote:

Originally Posted by Quicksilver Vert 01

The boiling point for water @ 18psi is over 250 deg F.

Oct 3, 2011 | 12:58 AM

LIGHTNING

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Melting Slicks

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From: NJ

Makes sense.
I was curious since I run it on pure distilled water a few times to flush out the Dex-Cool when I change the coolant, & noticed even on a hot summer day...the few short rides I'll take... it'll run about 5 degrees cooler with pure water .