Extra fuel for 570L Max ?

I have the BRP Trunk on the back of our 570 Max. We usually carry a small cooler on the front rack for drinks etc. when on all day rides. I’d like to be able to carry about 3 gallons of extra fuel on all day rides this summer. What are my options and your experience / set up ? Preferably up front on the rack. Pics would be awesome !

Thanks in advance

Extra fuel for 570L Max ?

I have the BRP Trunk on the back of our 570 Max. We usually carry a small cooler on the front rack for drinks etc. when on all day rides. I’d like to be able to carry about 3 gallons of extra fuel on all day rides this summer. What are my options and your experience / set up ? Preferably up front on the rack. Pics would be awesome !

Thanks in advance