Hi Tom: A friend who mixes windshield wash commercially uses 35% in the winter. That is plenty strong for Montana, but if he uses that strength he does not have to worry if the temp goes below -10F by several degrees.
Paul ----- Original Message ----- From: Thomas Kelly<mailto:[EMAIL PROTECTED]> To: biofuel<mailto:Biofuel@sustainablelists.org> Sent: Thursday, November 23, 2006 6:33 PM Subject: [Biofuel] Methanol as Windshield wash antifreeze Help if you can. I have relatives that own a bus company. They have 150+ gallons of windshield wash fluid. It is not winterized. How much methanol should be added to each gallon of washer fluid in order to prevent freezing to say .... -10F (-23C) ? I will experiment as follows: Small sample of fluid in freezer .... check temp it freezes at Add measured amount of methanol ..... check temp it freezes at Repeat until I get a vol:vol ratio that produces the desired results. I have other things to do tomorrow .... if anyone has a better plan/knows the correct ratio it would be appreciated. Tom _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
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