I have a dual fuel gen. Have never put gas in it. The gen is a little larger, but not large, can run the A/C and recharge the batteries. The only reason I have it is for those 2 reasons. Propane is 100% the way to go. Much easier to transport, in the bed of your truck, storage unit on RV. I can go days on a single tank - I only run it to recharge the batteries or run the A/C so a few hours a day at best. Maybe watch a movie at night after dark - shutting it off by 9. If we did run out of propane from the bottle(s) I bring, my RV has 2 30 gallon tanks, those can go all season and longer, so if I needed to grab one, I can. By the way, we also have a propane fire pit, so needless to say, we bring extra propane. Not a big deal, easy to fill, and a couple extra tanks can easily last a long trip without ever thinking about refilling. If I wanted to run the generator all day, which we did on a trip to MT, had the dogs in the trailer and needed to run the A/C for their comfort, we got 4 days out of 2 tanks and didn't drain the tanks.
Another benefit to propane - no issues with the carb. Today's fuel cruds up the carbs really bad on my lawn equipment and sons quad. I always buy ethanol free gas, but still plays havoc on some power equipment. Would hate to get out there and find out I need to clean out the carb to get the gen running. Dual Fuel is a great solution, wouldn't buy an RV generator that wasn't dual fuel now that I know.
