Message text written by "Philip Haldeman"
>(2) ". . .ordinary tap water can cause the carefully balanced chemistry in
an antifreeze/coolant to become unstable. Tap water [and also bottled
drinking water, incidentally--P.H.] contains sulfate, chloride, calcium and
magnesium that can be harmful to your cooling system. . . . But PRESTONE
Scientifically Purified Water uses a special multi-step purifying process
to
remove these harmful impurities. NOT EVEN THE PROCESS OF DISTILLATION can
get to the level of purity that PRESTONE Scientifically Purified Water
offers!"
Okay, now. Who's ignorant? Mercedes-Benz or Prestone? How can there be
two such completely opposed views in the year 2000 on such a basic
automotive subject?
<
Phil,
What I read was carefully scripted salesmanship on the part of prestone. I
think that their use of the word "purified" is different than ours.
Distillation will remove minerals (and other impurities that vaporize at a
temperature higher than that of water). But I think that their water does
not remove all impurities but only those that have a tendency to
precipitate out in a cooling system. But they couch it in terms that are
at best vague and at worst misleading. Just look at the antifreeze
commercials. Notice that they say: " NOT EVEN THE PROCESS OF DISTILLATION
can
get to the level of purity that PRESTONE Scientifically Purified Water
offers!"
Notice that they don't say that distilled water is less pure than theirs
but they do say that the purity level is different!
Does the bottle say that it is potable?
I think that this is yet another snake oil.
Dave
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