Don't really know if it makes a difference, but I buy the dilute it yourself stuff rather than the prediluted -- tap water is cheap.  then, for winter, I use it in a more concentrated mix than in summer.  Never a problem yet.  DMc

---- Richard A Jones <Jones@COLORADO.EDU> wrote:
> > I've found too that the cheap xxxx blue stuff thats .99
> > cents a gallon will freeze, despite what the label says. It
> > won't freeze in the tank, but it will freeze in the lines to
> > the wipers.
> Well, you should buy the good stuff--that costs 99 cents a
> gallon!  ;-)
>
> Actually, what happens is that the alcohol evaporates out the
> wiper nozzle slowly and so there goes your antifreeze.  Another
> instance of "use it or lose it"....
>
> Richard

--
David McNeely