I do not know where they had changed the oil in mine, but:
http://ecomodder.com/forum/showthrea...ads-28519.html
O'Reilly does oil change specials and I imagine that Autozone does, too. When I replaced my oil pan, I installed a Fumoto Quickvalve. A friend from school says that he does not live near any auto parts stores and the nearest ones do not recycle used oil. That sounds strange, but I also used to live by a Walmart that closed at 11pm, but later closed down completely.
People always said "It is called twenty-four-hour Walmart!"
That one wasn't!