I just picked up a 05 Heritage Classic with 5900 miles. Thought changing the oil would be a good idea since I know nothing about the previous owner. The drain plug is TIGHT. I've put leverage on it to the point that the hex socket gets stuck in the plug and has to be backed off slightly to get it back out. Experience tells me this is on the way to stripping out. I've been soaking it with penetrating oil, thought about running the engine for a while and cooling the plug with freeze-it or ?. Anybody have any other suggestions before I go back at it?