There was a company (Roam?) that claimed they had a auxiliary tank coming to market. They lied. No such thing exists, but a couple of jerry cans or ropax will work.As I look into buying a JLU... Are there aftermarket larger fuel tanks for JLUs? I'm a "when the tank is 1/2 full, I start looking for a convenient place/time to top off" person too. I also end up keeping a lot of fuel at the house for two reasons, one is that I get grocery/fuel points and like to take advantage of every gallon I can get at discount, especially when that discount is $1 a gallon. Depending on the store that's either 25 gal or 35 gallons. Second is that fuel stations can be few and far between and after the Earthquake there wasn't any power and then the gas stations all sold out of fuel... Right now I use the fuel points for my diesel truck, but that is what I am looking on replacing with a JLU.