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Qmulus · 05-13-2015, 08:08 AM

I don't get why the subject of Evan coolant always comes up in projects like this. In my experience, it doesn't live up to the hype. Maybe if you have an old car with a big radiator and a system that doesn't handle pressure well maybe it makes sense, but I see no reason to run it in a modern cars with cooling systems designed around coolant with specific properties. Does it solve a big problem you have thereby justifying the expense and need to re-engineer the system to use it? I would like to see a case where it did...

From the two guys that I know tried it, one just thought it was a good idea and used it on a car that never gets driven. He could have used anything and been fine. The other had trouble with the conversion, as in running much hotter, fans on all the time, etc. Evans first told him that he had not gotten all the old coolant out of the system (it was filled from new, dry components), or that it had air pockets (it was filled with a vacuum system and very carefully bled), then said that it was normal, and that he should run a high capacity water pump, special thermostat and change the fan control temp to keep the fans from running all the time. Those changes were not possible on that vehicle. After spending a LOT of money, he went back to standard coolant and had no cooling system issues. It was an expensive experiment that just added more issues to an already complicated project. I will say this was years ago, and maybe things have changed, but this guy still talks people out of Evans if they ask about it.

I can't say that I have ever had a cooling system issue with a properly maintained system. The issues that I have had wouldn't have been solved by running a no/low pressure coolant. I LIKE the fact that if I have a leak in the middle of nowhere, I can just add water to get me going. With Evans, you need to have coolant with you as water will contaminate it, eliminating its "benefits".

Do a search on Evans coolant and see what you find. If you are absolutely convinced that you need it for some reason, give it a shot. Maybe it will work great. Me, I wouldn't go there.

Just my $.02.

05-13-2015, 08:08 AM	#222
Qmulus inveniam viam aut faciam Join Date: Mar 2014 Location: Arvada, CO Posts: 440	I don't get why the subject of Evan coolant always comes up in projects like this. In my experience, it doesn't live up to the hype. Maybe if you have an old car with a big radiator and a system that doesn't handle pressure well maybe it makes sense, but I see no reason to run it in a modern cars with cooling systems designed around coolant with specific properties. Does it solve a big problem you have thereby justifying the expense and need to re-engineer the system to use it? I would like to see a case where it did... From the two guys that I know tried it, one just thought it was a good idea and used it on a car that never gets driven. He could have used anything and been fine. The other had trouble with the conversion, as in running much hotter, fans on all the time, etc. Evans first told him that he had not gotten all the old coolant out of the system (it was filled from new, dry components), or that it had air pockets (it was filled with a vacuum system and very carefully bled), then said that it was normal, and that he should run a high capacity water pump, special thermostat and change the fan control temp to keep the fans from running all the time. Those changes were not possible on that vehicle. After spending a LOT of money, he went back to standard coolant and had no cooling system issues. It was an expensive experiment that just added more issues to an already complicated project. I will say this was years ago, and maybe things have changed, but this guy still talks people out of Evans if they ask about it. I can't say that I have ever had a cooling system issue with a properly maintained system. The issues that I have had wouldn't have been solved by running a no/low pressure coolant. I LIKE the fact that if I have a leak in the middle of nowhere, I can just add water to get me going. With Evans, you need to have coolant with you as water will contaminate it, eliminating its "benefits". Do a search on Evans coolant and see what you find. If you are absolutely convinced that you need it for some reason, give it a shot. Maybe it will work great. Me, I wouldn't go there. Just my $.02. __________________ '03 S, manual, 18" Carrera wheels, PSM, PSE, Litronic, 996 Cluster, + Last edited by Qmulus; 05-13-2015 at 08:27 AM.