Yep, I have on occasion, using a gas can to top off after pumping at the pumps, added over 6 gallons, (Pumped 5.6 gals topped off with Reda 1 gal ) but rarely. When I do Iron Butt Rides I carry a REDA spare gas can - https://www.reda.co/reda-gas-can on the Spyder, just in case I don't stretch far enough....