Glycol based vs. Silicon /dot 3-4 vs. 5

["Dunst, Mordecai" <mdunst@smtplink.Coh.ORG>]

     Pro and Con
          Dot 3/4                         Dot 5 Silicon
     
          Minimum 284 wet boiling point   wet boiling point not a real      
          Centigrade                      issue 
      
          Cheap                           Expensive
     
          destroys paint                  Paint friendly
     
          Race cars use this              race cars don't use this
          (change brake fluids often)     as far as I know.
     
          Can be ruinous to certain       rubber friendly
          rubber parts  
     
          very hygroscopic                water less of a problem
     
          I use this in my race           I use this in my show cars.
          prepped Triumphs.
     
          TR4a solid axel#290EP            TR3a Motor Trend Aug. 1991
          TR4a IRS       #25 EP