Very new to the XF. Purchased a 2006 coupe limited in September with 13,000 miles for $14,000. A couple of weeks ago I noticed oil on the garage floor but only a few drops worth. Today there appeared to be more. Has anyone experienced an oil leak and if so where was it from? I'm wondering if the drain plug could be the problem. I have had oil pans distorted from over tightening on other cars and this caused the plug to leak. Any help would be appreciated. Thanks