Forero, Jaime E. wrote: > > 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. > ---------- The distilled water helps in some areas because the local water supply is either too hard or too soft (it's in the archives, I think it said too hard). Anyway, if it was too hard, those extra minerals in the water help speed up the corrosion. Thus, using distilled water can help. However, if you've got a decent water supply, it's not necessary. Tonya 87 Vanagon GL Wolfs 74 S. Beetle
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