Just had two weeks in Spain on the Pan - brilliant roads, friendly people, lunatic car drivers, cheap everything. On the way back, the Pan started vibrating through the footrests - at odd times which I couldn't pin down to any one set of circumstances. It would do it for a second or two, then all was OK again. We stopped over and I checked the oil first thing in the morning. Nothing in the glass viewer. Yes - that'd probably do it, but I was confused. Two days previously, the level had been OK. I wasn't on a slope, I ran the engine and let the oil settle again. Still no oil in the viewer. Took the bike 100 yards to a garage, put it back on the centre stand, bought some oil. Gave time to let oil settle down and filled it up to just under max. It took about 3/4 litre. I didn't get the vibration during the 3 hour run home. Got home. Worried about where all this oil was going, I went to check the level again. Full. Way above max. I had to let out (I guess) about half a litre. So where the hell did all that oil go to before ? Any ideas ???? (and no - it wasn't on a slope, on a side stand or owt like that). John Heath