Zero-pressure system

[DC_Stewart]

I have heard that there is a coolant which requires zero system pressure and is very efficient. Does anyone know the name? Anyone experienced in it's use?

 

[Shannow]

Wasn't it propylene glycol ?

I think that the British Airforce used nearly pure glycerol during WWII.

 

[SD26]

Yeah, would be propylene glycol. Evans Cooling sells it.

Ran my 7.3 Power Stroke without a cap because we had a leak from an accessory heater line. Without the cap, there wasn't really any pressure build up. Didn't overheat, didn't overflow, and I lost minimal fluid as a result. Was a 500 mile drive home.

 

[oilboy123]

I have been involved in 2 or 3 threads, do a search.

 

[lazaro]

Evans coolant has an operating pressure in the 4-7 psi range and boils at 0 psi at 375F
excellent product I use it in everything I drive.
it does exactly what is advertised. that is what I have found since I have used it

 

[Shannow]

Originally Posted By: oilboy123
I have been involved in 2 or 3 threads, do a search.


With 1023 posts, I'd say more than 2 or 3 threads.

 

[PandaBear]

What about viscosity or heat capacity? Would it be too thick to pump through or not carry away enough heat?