I'd love to hear your opinion on Oil Extractors vs. draining from the oil pan. I have a BMW X5 and the filter is on top, like most BMW's. I did my first oil change at 3500 miles via drain pan. I plan to do all my other oil changes via my oil extractor. FWIW, my dealer will be giving me at least 1 oil change for the next year, and those are usually done via the drain plug.