If so I lost mine during last oil change. Reason is long and stupid, but I just changed the oil and put the plug in without one. I keep thinking there used to be one. I feel real stupid since I have done all the oil changes since new. This was my 5th at 30,000 miles. It is dripping. Just not sure if I am missing the gasket or jsut need to tighten a bit more - I'm always hesitant to over-tighten. I also hate to think I have to drain (and possibly toss) the Mobil1 I put in only a couple of hours ago.