I'm not sure of Colorado temperatures. Here in the frozen north pure
anti-freeze will gel at about -45. Result is similar to freezing except
it won't crack blocks, just no flow so your engine overheats. But then
no one in their right minds drives anything British at that
temperature. Even I haven't done it for going in 30 years. Acutally
the recommended mix for any car at those temperatures seldom exceeds the
50/50 that we run in most cars.
Tom Yang wrote:
>
> Message text written by INTERNET:CANISDOG@aol.com
> >Tom,
> Why 50/50? I put 100% in my series 5, is this wrong? Should I drain some?
>
> Thanks
> Paul
> Colorado
> <
> Paul,
>
> Pure antifreeze will help keep the dissimilar metals from reacting, iron
> from corroding, and the coolant from freezing, but pure antifreeze does not
> conduct heat as well as pure water. To get the best of both worlds, a 50/50
> mix will work in all but the lowest temperatures.
>
> Tom
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