The maintenance manual for my 07 GS says to put 185ml of hypoid oil in the final drive unit during an oil change. 185ml ? Really ? In ANY other shafty bike I’ve owned (4) oil was put in until it ran out the threaded fill-plug hole. Wipe off the overflow, screw the plug in…and badda-boom you’re done. Is this 185-thing just the over-engineering of the tech manual ? Does everyone fill-till-it-runs-out like in every other final drive unit ?