I wanted to change the oil for the first time in my 2002 Wagon and it had a 7 mm allen key oil plug. I don't believe this is stock, at least it wasn't the same on my 2000. The other issue is I couldnt get this to budge, at least without fearing of stripping something. Any suggestions? Need to change the oil so I can drive it 200 miles home and give it to my parents as a present.