Richard Koerner <rjkinpb@SBCGLOBAL.NET> writes:

>From the curve, looks like a 60% antifreeze and 40% water mixture is
>significantly better than a 50/50 mix....wonder why we all do 50/50?�
>Corrosion protection should also be better with more antifreeze...just
>thinking.

50:50 is "good enough" for most areas in the winter, and probably does
better at cooling in the summer than a higher mix.

Allan
-- 
1991 Vanagon GL