Waterless Coolant

I use Evans in 6 of my 7 vehicles. It won't cool better, indeed less so than pure water (w/ anti-corrosion). The main advantage is that you get no corrosion, so if it works for you now it will work the same in 20 years and your radiator and heater core will still be pristine. It may be better at giving even temperatures and no hot spots in the head, since it doesn't boil until ~350 F. BTW, it will burn. I heated some in a pot on a backyard grill since I thought it might have some water. After kind of forgetting, I came back in 30 min w/ it boiling strongly and noticed a barely visible flame above. It caught paper I held on fire, which the vapors alone shouldn't do (Ray Bradberry said >451 F). I understand that original Evans was pure propylene glycol, but today is a mixture w/ ethylene glycol (check MSDS). Some say they have a patent on finding that mixture is non-toxic. Some say you can get similar effect using 100% Sierra coolant which is propylene glycol and only $14/gal at Ace Hardware, though it specs a few percent water content. Perhaps you could boil the water off. I carry it in the trunk as backup, since sure don't want to resort to water after thoroughly drying my system.

My 1985 M-B diesel strangely started creeping hot at long stop lights after a year running Evans, but seems unrelated to Evans since last summer I tried pure water (isolated heater core) for a few weeks and no difference. I also citric-flushed again, w/ no change. I think it isn't moving water thru the radiator at idle, since I saw no water flow from the disconnected upper hose until I rev'ed the engine, and the temp quickly drops if I rev the engine at a stoplight, and never overheats when moving. Yes, I changed water pump, T-stat (several), checked hoses, checked radiator flow, changed radiator, yada, ... Not actually a problem since my mileage has increased from 22 mpg to 25 mpg in city/hwy commute. Thus, one idea is to run a hotter T-stat w/ Evans and enjoy the better mileage. My similar 1984 M-B runs Evans with no such temperature creep.