I have two of the diesel containers from Tractor Supply.
Scepter Diesel Can, 5 gal. Capacity, CARB Compliant - 3950880 | Tractor Supply Company
I guess they have some weight when filled, but I just stand on the right floorboard, turn the nozzle lock off on the container, rest the nozzle on the filler neck, push down, and in goes the fuel.