On my 2010 TC 250s and 012 TC250, the caps on the clutch master cylinder say to use DOT 4 brake fluid... Is this correct? Sounds a little weird to me but if true, ok ...
My Gas Gas has the same information on the clutch reservoir cap. I flushed the DOT4 out of the system and put in Magura Blood. It worked out well. The thing that made me switch is that the mineral oil isn't affected by humidity over time, while the DOT4 is.
Dont do it !! It says dot 4 for a reason, Dont believe me go get a seal for a dot 4 system and place it in a tub with some mineral oil in there and go back a day later and see how much that sucker has swollen up, Same thing if you go the other way. May work for a fairly long time but will fail sooner than later
Mineral oil should not hurt anything. BUT putting brake fluid in a system designed for mineral oil will swell the seals usually.
I 100% stand by my findings ! Mineral oil seals are not the same material as a brake fluid system and visa versa. So to all who say it will be fine I dare you to put mineral oil in your brake systems then if your still alive a week later you can write a nice report on how well it worked from your hospital bed
And here is one I just found with a guy doing exactly what I did with a mix of seals - pretty convincing proof if I say so myself. http://www.largiader.com/articles/mineral/
