was pretty loose and I was thinking, “man, they didn’t tighten this much last oil change.” So I just drained all the oil, swapped the filter, and went to tighten the nut and it got a little firm, then all of a sudden loose, then slightly firm again. The dinguses stripped the threading on the oil pan! It obviously holds oil, but any ideas for more peace of mind. How easy is it to swap oil pans?