Adjusting clutch
The air inside the bellhousing is quite turbulant due to the shape of the clutch disc, pressure plate, and so on, so any noticable leaking of oil out the rear engine seal gets blown all over the place and oil as you know sticks to everything really well.
If it's not oil, look inside the bellhousing and see if the tranny is leaking from it's front seal. The same applies - turbulant air from the clutch/pressure plate spinning around at 1000's of RPMs blows that stuff all over the place as well. And tranny fluid, like oil, sticks to everything really good.
Both can cause premature clutch failure as the point of a clutch is to "bite" and mechanically lock the clutch plate to the flywheel, through the force applied by the pressure plate.
Oiling any of these components will cause things to slip for sure. Would you apply oil to your brake rotors and pads? Of course not. The same reason applies here to bad leaks.




