Going to a diesel pusher can be overwhelming. There are a couple of great forums that can answer many of your questions. Diesel RV club has many knowledgeable members that I have gone to more that one time. There is also FMCA (Family Motor Coach Acc) that has many benefits besides advice from other owners. Not sure if you have a Cat or Cummings, guessing probably Cummings. Both have 800 help desk you can call and get answers and advice.
Jim Pinkerton
06 Fleetwood Discovery