I only have 1100 or so miles on my truck but, I checked the oil after bringing it home from the dealership and it is above the full line a little on the dipstick. Like you said I checked it multiple times and each time was showing the same over full a little. I have just been driving it and didn't try to drain any since it should be right from the factory. Hopefully this wont cause a problem but I have heard someone else say theirs is the same as well on a new truck. So it must be a common problem.