I cannot specifically answer the whole of your question, but perhaps part of it. We retired 12 years ago, still have the sticks and brick. We travel about three months and then home about three months which makes six months a year. We have had three different brands of motor, three gas and two diesel. The Newmar DSDP we have now has been the best, most relievable, and least trouble free of any of them. That's not to say it has always been perfect because there is not a coach made that is, but the other diesel was in the shop before every trip as well at the end of every trip over five years. So while I cannot completely answer your question you will go wrong with a Newmar product.
