My mechanic replaced my oil pan gasket / crank sensor gasket right after I bought the car a few months ago, but every time I'm under the car I have noticed a few oil drops / dampness around the bolts to the oil pan, and the gasket itself appears to be damp. It rarely leaks enough to leave drops on the garage floor, and I've only lost MAYBE 1/2 quart of oil in my 5000 mile oil change but I brought it up to him anyway. He did some research and talked to a few BMW/MINI tech friends and they suggested re tightening everything and covering the outside of the gasket/pan with silicon sealer, so thats what he did. It has been a few days and I haven't noticed any more leaks, but it seems like this isn't really the "right" way to fix it and will be a giant PITA when it comes to do any work with the oil pan in the future. Thoughts?