Originally Posted by BimmerDude

My personal opinion, drop some oil flush in the engine, let it run for about 15 min or so. Even better, drive it around the block a few times, drop the oils, let it drain till there is no more drips. Then add some BMW HP 5-40 oil and I'll bet you it will be a lot more quiet then now. Also, Tomaz had a good question. Did you change the spark plugs yet?