Had a Propane gen set on my diesel pusher when I bought it. Changed it to Diesel as soon as I could. Propane was hard to find on road in small towns. Running Gen set all day when traveling had to fill 37 gallon tank every other day. and propane was expensive. used more than a gallon of propane per hour for a 6.5 kw. generator. I found diesel generator with Catapiller (perkins) 3 cylinder engine 8 kw and installed it myself replacing 6.5 kw get set.
best swap out i ever did. Never had to find fuel again. Never had to wait for stations in small towns to find guy who was qualified to operate the Propane equipment to fill my Motorhome every other day again. My propane in motorhome would last for weeks just running Refrig. and heater in winter.
Would never recommend another propane generator to any one again.....!!!!!!!!