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Re: Dexcool problem?
My car unfortunately currently has the wrong kind of coolant in it. I
have a bottle of some flushing solution that I got from a German car
repair place. I hope this stuff works, and gets rid of the bad stuff.
If it works, should I expect to get more efficient cooling? Or, should I
stop dreaming that it will even work?
"Graydon D. Stuckey" <firstname.lastname@example.org> wrote:
> On Sun, 9 Aug 1998, Steve Manning wrote:
> > traditional phosphate/silicate antifreeze has never been used. However, if
> > any traditional antifreeze has ever been used in your car's cooling system,
> > it is strongly advised to avoid using Dexcool. This is because, short of a
> > dangerous strong acid cleaning or complete replacement of all parts within
> > the cooling system, it is physically impossible to remove all residuals of
> > phosphates and silicates - even with repeated flushing. If Dexcool is used
> > in such a system, deposit formation will be almost instantaneous and will
> > seriously affect your car's cooling system eficiency and performance.
> > Because most corrosion occurs under such deposits, it will also affect the
> > long-term corrosion prevention in such a system as well."
> This is true. I talked to the engineer at GM that was responsible for
> releasing the long life coolant, and he told me basically the same thing
> as what you found above. The long life is not compatible with the ood
> style coolant, and it isn't as good from a heat transfer standpoint as
> the old coolant. It does last longer though, which is the only reason it
> is used.