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Ever Wonder Why I Use Dot 5?

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  • Ever Wonder Why I Use Dot 5?

    Just in case some dumb arse leaves the cap off the master cylinder when he's reverse bleeding it.

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    A lot easier to clean up then to repaint.

    Bob
    , ,

  • #2
    Thanks Bob. That's one screw-up I haven't actually done myself. (But I also use DOT 5 in everything.)
    Skip Lackie

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    • #3
      Just flushed one bike and one car in the last coupla weeks.
      I still use real brake fluid (DOT 4).

      Mike

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      • #4
        I use DOT 5 in both of my Studebakers. I like that DOT 5 doesn't attract moisture like others do.
        Joe Roberts
        '61 R1 Champ
        '65 Cruiser
        Eastern North Carolina Chapter

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        • #5
          I like DOT 5 after helping a friend pull a '64 Hawk out of a garage where it sat for thirty + years, and the brake system had zero stuck wheel cylinders/master cylinder, no leaks, and simply required a fill and bleed to get them working again.

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          • #6
            Dot 5 in everyhting I own for the past 40 years!
            Brian
            Brian Woods
            woodysrods@shaw.ca
            1946 M Series (Shop Truck)

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            • #7
              No problems with brake switch failures?

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              • #8
                My R2 had a dot 5 conversion done in 1985 when it was restored. Brakes work great. It still uses the brake switch that came with the car when I got it 5 years ago but I can't say how many switches the previous owner, and there was only one since the rebuild, had to replace before he got it right.

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                • #9
                  Perhaps the question here is, how does it work as a glass cleaner?

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                  • #10
                    Have had DOT 5 in 5 or 6 vehicles since 1978. One brake light switch failure in one vehicle after about 20 years of use.
                    Skip Lackie

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                    • #11
                      Originally posted by Michidan View Post
                      Perhaps the question here is, how does it work as a glass cleaner?
                      Or maybe a paint polish?

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                      • #12
                        Originally posted by Michidan View Post
                        Perhaps the question here is, how does it work as a glass cleaner?
                        Actually pretty well, not on it's own but the wiping with denatured alcohol, Prep-sol and Glass Magic cleaner makes for a quite clean windshield.

                        Bob
                        , ,

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                        • #13
                          Ok, so I’m still using dot 3 fluid in my Stude but the system is mostly empty as I had the wheel cylinders sleeved and remade all the steel lines. So how do I convert to Dot 5 in my car?

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                          • #14
                            Flush the entire system, then install DOT 5 and bleed the system.
                            I've been changing all my old cars to DOT 5 since the 70's, whenever I do a brake job.

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                            • #15
                              If you have replaced the steel lines, I assume you are also replacing the rubber hoses. They should be replaced any time the system is opened up. If it's "mostly empty" flush any remaining old fluid out with a good solvent (acetone, lacquer thinner), followed by compressed air to dry it out. Follow with a flush with a little DOT 5 to get anything still hiding in there.
                              Skip Lackie

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