Originally Posted by mcmann
Now I understand why KTM's use some oil . . . Blow-by gasses also contains some oil.
I don't recall oil use being an issue for the Adventures. I would certainly be alarmed if oil consumption was from excessive blow-by: use a catch bottle for a while and determine if accumulation is excessive.
If you think that's the case you should compression test the engine and determine if there's excessive leakage through the rings and verify the sump isn't overfilled. Is there oil accumulating in the air box?