hello ..I have noticed that brake oil of my car is decreasing not too much but a little bit ..Is there any problem ?
I think if its a very minute amount then its ok, but if it disappears everytime you replenish it then it might be leaking.
which car do u have?
well its not decreasing fully ..just i replenish and i find oil level a little below max I have coure 1995
inspect the inner side of the wheel hubs, if its leaking crud would be accumulating there.
there is leackage check rear brake cylinders or seals and front brake disk cylinder, also master cylinder.and if these things are ok check the brake Survey.