Just purchased a Onan cummins p4500i generator. The oil drain plug is very difficult to get access to. Has anyone done some sort of a mod to help with this. I have noticed on other generators that are similar in size have a rubber hose with some sort of twist cap on the end that extends outside of the access panel so it's easy to drain. I think I'm going to try to order that part from another manufacturer and see if I can't get it to work.