Paul,
     Thanks for the info  .....    35%   WOW!
     35 gal of methanol to 65 gal of summer wash fluid  ...  a lot of methanol
     No wonder demand for methanol increases in winter.

                 Thanks again,    
                                Tom
  ----- Original Message ----- 
  From: PAUL MILLER 
  To: biofuel@sustainablelists.org 
  Sent: Thursday, November 23, 2006 8:44 PM
  Subject: Re: [Biofuel] Methanol as Windshield wash antifreeze


  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 
    To: biofuel 
    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
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