I just got done doing my first oil change on a used 2015 Foreman I recently bought. When I was tightening the drain plug bolt, it started to get tight and then it felt like it gave or slipped just a bit. I made sure it was snug and filled it up and saw no leaks. Do you think that little bit of give I felt was the crush washer collapsing a bit, or is it possible I might have stripped the threads. If I did strip them, would it be the plug or the case that most likely stripped? I didn't have a torque wrench (will buy one now though), just doing it by hand trying to guess at the 17 ft-lbs.