I've got a filter package coming from Gino's and will be doing my own oil/fuel filter change in the near future. I'm not a total dummy when it comes to mechanics but I've never owned a Cummins before. Seems simple enough, but is there anything I should know? How does the fuel filter come out? Just unscrew the cap. Where is the water sensor and how do I clean that? Thanks in advance. This is a great board.