Originally Posted by semtex

I think it'd be a good idea for someone to do this at least once, as an experiment to see whether or not any more oil drains after dipping the drain-side (right hand side) down lower. If more oil comes out, then we know that it's necessary to do this in order to get every last drop out, so to speak. If no more oil comes out, then we'll know that it's unnecessary.

Having said all that, though, I don't think it's really necessary to go to such lengths. I mean, keep in mind that the majority of people are going to have someone else do their oil changes. If they take it to the dealership, it'll be up on a lift. If they take it to an express lube place, it'll stay on the ground. But in both cases the car will remain flat. Point being, I doubt that Nissan would have designed the oil pan to retain a bunch of oil when drained while flat.