Evans Waterless Coolant - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 11 (permalink) Old 07-26-2012, 11:35 PM Thread Starter
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Evans Waterless Coolant

Learned about this on another site.
http://www.evanscooling.com/

1) Non-corrosive (unlike water).
2) Non-Toxic
3) Higher boiling point than water
4) Requires less coolant system pressure (safer).
5) Lasts the life of the engine (never have to replace!).

I think I like this stuff!! I think I'll give this a shot next coolant change.
They recommend saving and reusing the coolant if it has to be drained for any reason.
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post #2 of 11 (permalink) Old 07-26-2012, 11:43 PM
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Has the jury come to a conclusion?
Not being a [email protected], but I put a lot of stock in your findings...

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post #3 of 11 (permalink) Old 07-26-2012, 11:50 PM
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Good post SubSailor - due for a coolant flush and change and will look at this near the end of the riding season.
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post #4 of 11 (permalink) Old 07-27-2012, 12:04 AM Thread Starter
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Originally Posted by twin_lover View Post
Good post SubSailor - due for a coolant flush and change and will look at this near the end of the riding season.
On their site, they said that the cooling system needs to be totally drained of all water based coolant (engine included).
It needs to have less than 3% water in the system.
They have their coolant flush to remove water from the system.

Then after flushing, you add the actual coolant.
So the initial cost will be higher (flush and coolant).
But unless a serious failure occurs that can cause major loss (hose or water pump seal), no more coolant should ever be required.
If you need to drain the coolant, keep it and pour it back in.
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post #5 of 11 (permalink) Old 07-27-2012, 12:33 AM Thread Starter
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Has the jury come to a conclusion?
Not being a [email protected], but I put a lot of stock in your findings...
It sounds pretty logical to me.
Water is a very good conductor of heat, but it's also chemically active.
Especially where dissimilar metals are involved.

If you make the coolant chemically inert, then corrosion should not occur.
Sort of like placing a bar of pure iron in a container filled with inert gas, such as argon. No oxygen, no rust.

And since the the coolant has a much higher boiling point than water, there's no real need to pressurize the system as high (as needed with water to raise it's boiling point).

The only disadvantage I see is the initial purchase of the coolant, and the required draining and flushing of the entire system.
However, once that is all said and done, the coolant is there for the life of the engine.

Pretty radical stuff to me, despite being around for 30+ years, it appears.
Check out some of the links to articles on their web site. Interesting reading.
Especially the ThumperTalk link (for bikes).
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post #6 of 11 (permalink) Old 07-27-2012, 12:36 AM
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I know ThumperTalk. From my CRF450. Had no idea the stuff has been aroun that long. Going back to their site...

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post #7 of 11 (permalink) Old 07-27-2012, 12:55 AM
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I wonder if it is legal on the track.

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post #8 of 11 (permalink) Old 07-27-2012, 03:49 AM
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Is there a freezing point? For those cold mornings


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post #9 of 11 (permalink) Old 07-27-2012, 01:09 PM Thread Starter
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I wonder if it is legal on the track.
On the Evans site, they do show a version of their coolant for racing on tracks that ban ethylene glycol coolant (regular coolant).
Having never tried any of their coolant products, I have no idea how slippery the regular stuff is.
They don't recommend the racing coolant for daily drivers or such. Why? No clue without contacting them.

Last edited by SubSailor; 07-31-2012 at 10:05 PM.
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post #10 of 11 (permalink) Old 07-31-2012, 05:16 PM
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Argh, can't play the vid on the link. I'll try the web site direct and see what I can find. Curious about the freezing point too. My garage stays above freezing most of the time, but if it stays -40 or colder for a week or two water will freeze in there. Wonder about the daily driver thing as well, will have to do some homework.

Duct tape can't fix stupid...but it sure helps muffle the sound
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