Antifreeze/H2O Ratio

[mike]

--- Robert Myers <robert at s-cars.org> wrote:
> At 08:23 AM 4/8/01 -0400, Larry C Leung wrote:
> 
> >Mike,
> >
> >Anti-Freeze lowers freezing point/raises boiling
> point BUT has
> >comparatively poor heat transfer properties
> (compared to water) and less
> >heat capacity (ability to store heat). IF you can
> keep temps down below
> >the mixture boiling point, more water will transfer
> more heat from the
> >head to the radiator.
> 
> 
> >Water Wetter (Redline) helps water/antifreeze (or
> >water alone) be in fuller contact with the metal
> surfaces, also helping
> >heat transfer.
> 
anti freeze also lowers surface tension and so
improves heat transfer...does this offset the lower
heat capacity? ie which is the more important effect?

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