expl0d

Water... sounds.. so... good... right... now....
damn power outages.. and I doubt hteyll have water back on by 7:30.

DCrosby

Uh sorry to break up the party, but chemistry 101...
Salt (Mineral) Raises the boiling temperature of water...
Therefore Cooking potatoes faster... (More Heat)

Therfore Distilled water, allthough great for the radiator, bad for poiling point... allthough, salt or minerals only raise the boiling point by 4-10 degrees celcius...

Therfore Salt on roads helps to a point from freezing, but once you're talking 20 below you're screwed and need to start shoveling or chipping away ice...

Hope that Helps....

bajaman

At high altitudes, like in the Rocky mountains, water boils at temps too low to really cook stuff, so you have to use a pressure cooker.

paw140

Adding water with **** that will clog up passages and leave a layer of scale buildup on things, only to raise the boiling point by a few degrees (if at all) is not a good idea. That's what ethylene glycol and pressure caps are for.

CCarlisi

I ran pure distilled and noticed a lot of corrosion in the overflow tank. However, I want to note that I developed a coolant seal problem a few months later. Therefore the brown corrosion may have been an early sign of the coolant seal problem rather than corrosion from the distilled water. To be on the safe side I'm going to run some coolant to reduce corrosion in the new motor.

Herblenny

iTrader: (13)

I agree with CCarlisi,

I know people like to use pure distill water because you hear about water having great heat transfer rate etc.. but also I think coolant protects seals and help corrosion.. I think right ratio between coolant and distill water is the key to longevity of the engine and optimal cooling..

But as always, I could be completely wrong..

paw140

I think you may have misunderstood me (or someone else in this thread). I don't think anyone is suggesting running 100% water in their coolant system. They are suggesting to run an ethylene glycol / water mix, but to use distilled water instead of tap water. Ethylene glycol is needed to reduce corrosion, lubricate the water pump, increase the boiling point, and decrease the freezing point.

CClarlisi, I'm not surprised you saw brown corrosion buy running pure water. It was probably rust.

KevinK2

running 100% water will result in rapid corrosion and short water pump seal life due to poor lubrication. 100% distilled will corrode metal even more quickly than tap or spring water. at lest run waterwetter if no antifreeze.

Herblenny

iTrader: (13)

I always thought that about just using water.. But I heard distilled water didn't.. I can't tell whos right about what???

paw140

Don't run 100% water. Even if it is distilled, it will still corrode things. Distilling just takes all the minterals and other impurities out so that it doesn't gunk up your cooling system. Thats all.