In a message dated 97-01-08 11:21:39 EST, jforero@CA1.jsc.nasa.gov (Forero,
Jaime E.) writes:

> I was told by one mechanic at the local VW dealer that using distilled
>  water with the coolant helped prolong the life of the heads by slowing
>  down down the corrosion process.  I figured it could not hurt so I use
>  distilled water now.

I've also been told that distilled water lacks minerals that are "attacked"
in the corrosion process.  Lacking these minerals the corrosion turns its
attention to the heads.  I don't know what story to believe.  If distilled
water was clearlt better, you'd think manufacturers would reccommend it.

??????????
Jim Davis
87 GL Syncro
88 GL Wolfsburg