Evans coolant ?

[JimPghPA]

Has anyone switched to Evans waterless coolant?

There site is www.evanscooling.com . This coolant is designed to run at atmospheric pressure when the engine if at running temperature.

Just wondering if anyone has any information about actual results of using this coolant.

JimPghPa

 

[Ragin_Diesel]

Evans is a great product, Both of my diesels have it in the system. It seems to disapate heat much better when pulling my trailer. I do feel though it's more applicatipn specific. What would you be putting it in?

 

[Gary Allan]

To run at atmospheric you need a suction side cap. The normal pressure side (upstream from the rad) can't use a zero pressure cap due to the resistance of the rad. Not a biggie. They sell lower pressure caps ..like 7lb. for the normal setups.

It's not a miracle cure for an undersized cooling system in a way over powered setup. If you've got too small a rad ..you're still going to experience most of the same issues except you won't boil over.

It's also difficult to get all of the water out of the system. The real stuff is pure PG and has no additives in it. The "+" stuff is made for partial water content. They do sell a neutralizing agent that can be used a make up.

I guess if you purged to pure water and hooked a hair dryer to thermostat housing it would eventually dewater the engine.

 

[JimPghPA]

For now, thinking of putting it in to an 2001 Impala with a 3.8 and it's second intake gasket, and possibly a 1985 Olds Delta 88 5 Liter Gas engine 2 door, and possibly a Buick 1996 Roadmaster. Stock engines, well maintained cooling systems, no over-heating problems with any cars. I like the idea of an antifreeze that has Zero rust, and low pressure.

I figure the 2001 Impala is due for replacement of original radiator and heater core next spring, and am thinking of switching it to Evans + type then. Probably will install U.S. made rad. and heater core (use to be Modine, now Proliance). It seams all radiators that are made over-seas are good for about 18 months and then they get several very small leaks. I would rather spend an extra hundred or more to get a radiator and heater core that is good for a decade.

I understand that because of the Zero electrolyte action (Zero rust) that Evans has a very long use life. How long do you leave it in for? Do you flush you cooling systems after many years of using it, or just leave it in, or change it out?

If you do change it out and or flush system and change it, how often?

JimPghPa

 

[JimPghPA]

Re: To run at atmospheric you need a suction side cap. The normal pressure side (upstream from the rad) can't use a zero pressure cap due to the resistance of the rad. Not a biggie. They sell lower pressure caps ..like 7lb. for the normal setups.

I guess you are talking about the standard type of cap and over-flow. And the "resistance of the rad." refers to the flow turbulence and changes in pressure caused by the pumping of the anti-freeze through the rad.

I guess it makes sense that the flow in the rad. would cause problems it you tried to run the radiator open to ambient. What pressure cap do you use with Evans.

JimPghPa

 

[Ragin_Diesel]

I don't know that evans is the best product for your impala. If it were me i would just use a GL5 and distilled water as my fill for this application.

 

[JimPghPA]

From what I understand, distilled water quickly becomes contaminated with small amounts of metal once it is put into any engine. Once contaminated with metal water becomes conductive and supports rust inside the cooling system.

The advantage of Evans is that it is used 100 percent with no water. When metal enters Evens fluid it still can not conduct electricity. Because there is no electrical conduction, there is no rust inside the cooling system. Therefore the cooling system should retain 100 percent cooling capacity for many years. This is in contrast to the normal steadily decreasing cooling capacity caused by internal rust with anti-freeze + water.

The other advantage is that when the engine is at normal running temperature this fluid will not boil at atmospheric pressure and does not require the cooling system to be anywhere near the pressure normally used. Less pressure means less stress on all parts of the cooling system, and less chance of leaks.

There is normal fluid expansion due to the slight hydrostatic expansion when heated.

Evans will not boil when allowed to be exposed to atmosphere pressure when the engine is at running temperature.

I have not used Evens yet but it promises to be an Anti-Freeze that really provides Zero cooling system rust.

JimPghPa

 

[oilboy123]

I tried it on my 98 Taurus a few years back and did not get good heater performance around town. I switched it back out.

It is a lot of work to deal with.

 

[JimPghPA]

Thanks for the information.

Spring is many months away. Maybe others who have used Evans+ in similar vehicles can comment on their experience between now and then.

All comments regarding Evans+ are welcome.

JimPghPa

 

[oilboy123]

Till they get a formulation that is made for stock vehicles it is an expermental thing, IMO.