Anybody tried Evans Waterless Engine Coolant?

[stubear334]

I see this stuff advertised in Practical Classics Mag (UK) all the time. Anyone tried it ??

http://www.evanscooling.com/

STu

[insyncro]

I have run Evans in many race machines for years.
Excellent stuff.
I have recycled it from endurance race cars and used it in Subaru converted Vanagons.
It really displaces heat

[D Clymer]

It works very well. I have been a fan of it since the late 1980s when I first read about it in European Car. It is so efficient at cooling and eliminating hot-spots around the combustion chamber that it allows higher compression ratios to be run successfully. It is also non-aqueous so it would eliminate the head corrosion problem with Wasserboxers. However, it is flammable, and that is a big concern to me in a vehicle like the Vanagon with its complex and convoluted cooling system.

David

[insyncro]

It thickens as it gets colder and other Evans products should be used when flushing to get all the water out of the system.
It seems to run in a Vanagon at lower than 15lbs of pressure, so you will need to manually bleed as the pressure cap will not ebb and flow.
On my racers I plug the weep hole in the water pump when running this product.

[stubear334]

If there was ever a car to use it, my Triumph TR7 would have been a prime candidate. It had a finicky cooling system-more so than the Vanagon! At new, those cars had massive cooling problems. Great car other than that.

Another good car that could use it would be Jaguar v-12s, Triumph Stag, oops anything British I guess. Just kidding.

STu

[SL12572]

Nice find...


I'm going to give some serious thought to using this in my supercharged engine project.

David, do you have any references to the flammability of this product? That seems to be my only concern.


Thanks,

Scott

[D Clymer]

[MarkWard]

The downside would be you would need to always carry a lot of extra just in case you need to do a cooling system repair on the road.
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[SL12572]

"The downside would be you would need to always carry a lot of extra just in case you need to do a cooling system repair on the road."

Actually they say their product "can" be mixed with water, however, when you got back home, you would have to flush all of the water out of the system.

[SL12572]

Here's some information from Evan's cooling regarding the flammability:

Scott...........our coolant is not flammable. It is, as is any other coolant, combustible. To explain, if the coolant is put into a misting situation and an ignition source is available, it will ignite. But as far as flammable, you could pour it on the ground and throw a lit match into it and the match would go out. This goes for any type antifreeze on the market as well as ours.
Thank you for your inquiry,

Evans Technical Support
888-990-COOL


What I also like about this coolant is how it operates under a lot less pressure, which is easier on cooling components.

I think I'm sold on this stuff..

[240Gordy]

Interesting, iwonder about a mist of 100% regular coolant . . .
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[insyncro]

[D Clymer]

Scott and Dylan,

I think you know I am not trying to condemn the use of Evans NPG in a Vanagon, but I think it is very important to get a true clarification regarding ignition characteristics and what the flash point temperature is. If there is absolutely no chance that leaking coolant - misted or heavily leaked, landing on a hot exhaust header could ignite, then I guess it is fine.

But it seems to me, finding out for sure if NPG can be ignited by a hot surface, what surface temperature would cause ignition, and what temperature Vanagon headers run at would be a very prudent investigation.

I would want first hand information from an outside source. Not that I don't trust Evans. It's just important to keep in mind that their objective is to sell coolant. I just did a quick Google search and found the exact same explanation they gave you on a different forum, so that tells me they just cut and pasted an answer to a commonly asked question.


D

[MayorMcCheese]

Regular ethylene glycol coolant is also combustible. In fact 7,600 Ford Escapes were recalled partially because of it.

http://www.nbcnews.com/business/ford-recalls-new-escape-again-citing-fire-risk-981237

Ethylene glycol has a flash point ( of ~230F and an auto ignite temp of ~770F


Evans coolant is propylene glycol based. Propylene glycol has a flash point of ~220F and an auto ignite temp of ~700F

However ethylene glycol coolant is mixed with water so any risk is even more reduced.
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[insyncro]

Atomize most liquids and they will ignite on a super heated metal.
David, I'm all good.
I use this stuff, but don't expect anyone else to run with it.
Too racey

[D Clymer]

[insyncro]

Agreed.
I ain't skeerd.
Dare to experiment...its worth it

[JunkYarDog]

I just watched a bunch of videos on this stuff and read a few pages of text. I recently switched to G12 coolant but I am seriously considering swapping over the next time I have to drain the G12. No Pressure means the miles of rubber hose will last a bit longer and reduce the chance of another hose blow out (been there). No corrosion, well, we all know what that means for the WBX! And all this with a wider temperature range too. But the nice part is buy it once, and you can reuse it after a drain off...
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[furrylittleotter]

No I sure haven't tried it, but since these engines are so finicky, I would hesitate to vary from the Factory recommended.

Neil2