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Trog & NDT, When you converted to DOT 5, how thorough did you have to be about getting out the older brake fluid? Will draining the old fluid and a pressurized flush with DOT 5 do it or does the system need to taken completely apart and all the seals replaced?

Thanks NDT and Trogg. That's what I thought. That's difference between brake fluid that is hydroscopic (DOT 3, etc) and the fluid used in a DOT 5 system. Prior to Dot 5, the fluids were hydroscoptic and would absorb moisture right out of the air and eventually rust ALL the steel...

I'm in the same boat. I'm trying to decide if I should use DOT 5 in my M-37 but I have no information about what the seals are made of so I don't know if DOT 5 is safe or not and I haven't found anyone else that's using it. I may be wrong but I thought DOT 5 was NOT hydroscopic and that's what...