But what about the oil that comes out of the filter when unsrewing it?
I think there is a oil channel made by REVTECH that you put under the filter. That will prevent your engine being spilled.
After unscrewing the filter you can run the engine to get out the old oil like you do with the oil scavenger.
The benfit here is the clean engine.....
Just dont' know if it fits the BD frame.
Jochen