Just put 2 1/2 gallons of Evans Waterless Coolant in my 318 v8. I read other reviews that said the engine runs warmer with the waterless coolant than the 50/50 mix so I switch from a 195 degree t-stat to a 180. The engine runs around 170-175 degrees. I've been running it a month and its never touch 180. In the morning while warming it to go to work it takes about 5-10 minutes more to warm up than the 50/50.
It doesnt pressurized my radiator or hoses. I can turn the engine off after making a hour trip and the hoses are still soft. Hot but soft. I open the radiator cap and no boiling over. But for a couple of days after putting the coolant in a running it I did have to open the radiator cap and let some pressure out but it didn't shoot all over the engine bay like 50/50. I guess that pressure was from the small drops of water I couldn't get during my flush. So a month after running it I opened up my radiator cap twice because I felt a little pressure build up on my hoses. This last time the pressure wasn't as much as the first time. I'm guessing that this is a little water in my system thats build up this pressure. If so I will have to keep opening my radiator cap to let what ever pressure is in my system out.
My experience with this coolant is new but I am beginning to love it for making my 318 run cooler than its suppose to. No pressure (for now its very little) on my radiator and it's hoses. I hope that it doesn't start to corrode my water pump and core plugs like it advertises but only time will tell. I'll have to wait untill next year for a follow up about that.
Sorry that this sounds like a speech but I found no reviews online that have the same experiences like mine using this coolant.
Last edited by flipfloptrep; 11-07-2015 at 04:16 PM.
I would think you would/could get some pressure in the system simply from the liquid volume expanding. Agreed that it might be less than pressure with water in the system, but not sure you will ever get it to zero pressure at operating temperature.
With the lower temp. thermostat, the engine cooling fans should be running less, and will last longer.
The 318 v8s have clutch fans not electric. But since it has been getting cold it runs at 160 degrees instead of 180. I'm thinking bout going back with the 195 stock t-stat because as I said before it takes a long time to get to 165-175 degrees.