Maxowner;
I ordered gen prep on my 3585, sister to GC, couldn't decide on Propane or gas gen and was back and forth. When coach came in shortly after delivery I should say I had dealer install 5500 propane onan, because I wanted convienience of pulling into a rest area, parking lot, ect and starting up gen to cool things down. I loved it. Most times I would start it when we were getting ready for trip, packing up, for lights and A/C here in Fl. OK things went well till I went to boondocked in Louisville, KY for a week in June. I knew about the heavy fuel consumption of propane gens at full load 1.2 gals per hour. You probably wont be a full load but at least 1 gal per hour. My 30# tanks would last about 6 hrs. I also had 50# tanks that I took in bed of truck. They would last about 8-9 hrs. This was continous running afternoon and night to try and get it cool enough to sleep. I spent a portion of every day running propane and it wasn't cheap. So I changed. I took out firebox to give me more room in front compartment. I installed a female recepticle under front corner of front compartment and wired it to existing junction box where onan hooked up. I now carry a diesel generator on the back of my truck and have a 50 amp cord that runs to outlet in front( when parked). My diesel generator burns .5 gals/hr at full load. Even when I stop at truck stops, Cracker Barrell, rest stops, ect it only takes a moment to hook it up. I love this set up. I can run for a week on fuel if needed...got big tanks. If I were going to get a gas gen, I would consider 6500 IS honda if I wanted to run 2 A/C units, in the back of my truck with cord like I talked about. My 3000 watt Honda pops it's CB every now and then when I try to power the mother ship. I got such a good deal on my 10K diesel I couldn't pass it up plus no extra fuel source. And while I'm thinking about it I need to change my info below because it still has onan listed.