Unfortunately, most of my learning is from the school of hard knocks. I think I even have a master's degree. Now without exception, nobody gets to stick thier head under my hood except Cummins. If you go to their website at
www.cummins.com You can get to 2 important links. First, is the Power Masters club, for $19.95 per year you get 10% off on all Cummins /Onan nparts and labor at a mCummins facility. Secondly, they have an operation called "Coach Care" that is available at 40-45 Cummins operations across the U.S. At a CC operation they have dedicated bays and dedicated techs. exclusively for RVers. Most also have separate waiting rooms for RVers and most of them have 30-50 elec. hook-ups for overnight stays. I have had them sercvice roof A/C, electrical, etc. and they are great. I have used CC in Harrisburg, PA; Cleveland, OH; El Paso, TX; Phoenix, AZ; and the only difference between any of them was the accents of the employees. My wife particularly like the cleaniness of the CC operations where you don't feel as though your coach is going to be subject to an internal redecorating in grease tone. My 2 cents and then some, Ken.....