Evans waterless coolant

[Bill67]

Does anyone have any experience with Evans waterless coolant?

[Moxie26]

Bill... I have used Evans waterless coolant since 2003, very satisfied, and will not change... Yes it Is expensive but worth it in my estimation through experience.,.. Early on I had problems with coolant loss through rubber hose connections. The metal castings that they fit onto were pitted and the rubber hose itself did not seal into those depressions. Early on I did have to buy extra to replace lost coolant. As far as engine benefits, I find that Evans waterless coolant does not boil in the engine and radiator after shutdown like water and regular antifreeze did early on. Radiator thermostat does register slightly below normal even on a hot day. I'm sure we'll all read other members, pros and cons and experiences with Evans, good luck with your decision.

[su8pack1]

I installed it in my Model A several years ago and so far so good. I'll eventually put it in the T.

[Bill67]

Thanks for the responses. I appreciate it.

[mortier]

You'll see several discussions of the Evans product on this and other forums. Evans themselves do not recommend its use in non-pressurized coolant systems. However, a lot of people use it anyway.

https://www.mtfca.com/discus/messages/2 ... 1351862306

https://www.mtfca.com/discus/messages/4 ... 1417887364

[TXGOAT2]

You can also put Pink Air in your tires!

[Woody23]

Hello Bill, I looked into this a while back when I restored my ‘23 and believe the website stated not for use on a thermosiphon systems so would be interesting to hear your experience if you try it. If you run a pump maybe that would help? Maybe it’s a velocity thing?

Let us know if you try. There is another product I picked up and planning on using called “no-rosion” it is a corrosion inhibitor you can add to water or glycol. I learned about this from a few museums that use it.

https://www.norosion.com/

Good luck

David

[TXGOAT2]

I would not go against the Evans' advice concerning use of their product.
I would not use it in any thermo syphon system, or in any system with a rag seal water pump, or in any vehicle with an old radiator.
Using it in a non-pressurized system that is open to the air may not be a good idea, either. I don't know if Evans has specifically addressed that.
Using modern ethylene glycol antifreeze as directed will give excellent results in Model T and Model A Fords, and it will prevent corrosion and provide water pump lubrication.

Adding a coolant overflow system to a Model T or Model A will keep air out of the cooling system and thus further prevent corrosion while assuring the radiator is full of water, provided the radiator cap has a good gasket and the radiator is leak free. Speaking of leaks, I've seen many pictures of Model T and Model A engines in good running order that show evidence of minor seepage from the head gasket. It's clear that head gasket sealing in these engines is not as tight as in more modern designs. Evans coolant is more prone to seep through micro-leaks than regular anti-freeze or plain water. I see no good reason to use it in antique systems, and the product maker does not recommend it.

[Bill67]

Thanks again. Although I do have a pump, I’m leaning against it.

[Steve Jelf]

Is it necessary? Why pay extra for a product that's not recommended for thermo-siphon systems? Leaky hoses? Fix 'em.

[TRDxB2]

Price is in the ingredients

[RVA23T]

Looks like mostly undiluted regular old antifreeze!

[TXGOAT2]

I'd stick with "green" antifreeze at 50/50 with distilled water. It works, and it works well. In regions where freezing is a non-issue, 30/70 mix might be adequate.
If you're really concerned about corrosion, adding an overflow tank to exclude air and making every reasonable effort to assure a good head gasket seal will get you a long way toward eliminating corrosion. Even a very tiny combustion leak will accelerate corrosion. If you run a water pump, it's important to make every reasonable effort to make sure that the water pump seal does not leak under ANY operating condition. Rag seal water pumps can and do leak air into the coolant at higher engine speeds, and it can happen even if the seal does not leak when sitting. Aerated coolant guarantees corrosion. If I used a water pump, I'd seriously consider adding an overflow tank to reduce exposure to the air to a minimum.