When i installed my generator we went with the Gas version.Now when going away rving I have 2 type of fuel tanks made to carry in the bed of our truck. First type of fuel tank is the marine 7gal fuel tank sold at walmart, it has a 6' rubber hose with the quick connect end, easy on/off of the fuel hose.. I also made a 1.5Gal fuel tank to take on trips that I might need the Gen for only quick usage at rest areas along the highway..The Gen fuel connection is located on the RV attached to the bottom outer edge of the body near the landing gear leg....I did 2 RV's this way and carrying gas is a pain but its worked well for us..