Hot? orrr....Not?

Ok so I saw a show on tv the other day that was talking about how distilled water will not boil like tap water will. They heated it up and it stayed calm, that is until they added an impurity(in this case sugar) and it immediately "exploded" into a boil. So I was just wondering what might happen when using distilled water in a cooling system (w/o antifreeze). Could it be... Nothing? A catastrophic explosion that kills 12 ppl? Or an 87.3hp gain? or what?

For one thing DI water is so pure it will try to find a balance of minerals by leeching it out of the cooling system. that means anything aluminum will be sacrificed to the water.

hmm... if so that wouldnt be too great

I suppose a guy could try running a sacrificial annode in the radiator?

true like when you use one in chemical rust removal...