Quote:
Originally Posted by Old Tele man
Most of the 'brand-name' coolants specify 50-50 mixture, except for FAR northern locales, like upper Alaska and Canada, etc.
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Well the reason for that is most places get sub zero temps in winter. Socal and some parts AZ don't really get that. Might as well run cooler by running 20/80. Water has much more heat absorption then antifreeze, at least that's what I was told. Only reason I don't run 100% water is because I know antifreeze raises the boiling temp.