Mark Dorm wrote:
>
> But is the metal, it encounters, a salt???
>
> >Using distilled water seems kind of silly. It would be contaminated by
> >metal as soon as you put it in the system.
> >
> >Mike
> >JMO

The idea is not to avoid contaminating the water but avoid introducing
minerals (and other stuff) from normal tap water. Depending on mineral
content and PH value you can affect the additives in the coolant,
lowering it's protective properties. Also, salts and such are left
behind when coolant (water) is lost from the system due to evaporation,
etc. Soon you have a very salty engine. Then you'll have to wash it's
mouth out with soap. :)

TBerk
Distilled water in battery? A must.
In radiator? Recommended.