Noticed new spots in the driveway the other day where I park the mini so I looked underneath and sure enough it's leaking. It appears to be coming off the front of the engine at the timing belt cover and dripping down on the front axle drive shaft. Judging by the location it my be a oil pump leak. Checked it out in the shop manual and first thoughts are this is not going to be pretty. According to the shop manual you have to drop the oil pan to replace the oil pump. Not sure if you can replace a seal without replacing the pump. If I wasn't worried about it getting on the timing belt I would just keep an eye on it and if it doesn't get too bad just drive it. So far it hasn't showed up on the dipstick. On a side note I switched to Rotella T6 synthetic oil about 10,000 km ago. I have heard that switching to a synthetic after using dyno oil can cause leaks??? Not sure if this is true. Any thoughts or suggestions about this situation?