If its not leaking no need to touch it, but on the other hand new parts are cheap and its not a big job, colour of your clutch fluid is a good indicator, black is the seals breaking down
why would it push into the crud?? when I bled mine a the weekend I just opened the nipple and kept filling the tank till it was running out clean
Yes I understand that but I did have to push the pedal so it never went into the crud