If any of you decide to change your own oil filter beware that the factory filter is tough to loosen. It's a bit hard to get to, and you don't have a lot of room to work, which makes it a bit of a pain to remove. King Kong must have tightened mine at the factory because none of my oil filter wrenches would loosen it. Had to take it to my Chevrolet dealer, put it up on a rack, and even then they had to wrestle with it to finally get it broken loose. Just thought this might help those who decide to do their own oil change. Needless to say, I did not over tighten the replacement filter(UPF-44 Ultraguard Gold AC Delco filter).