When I am driving especially long distances without too many breaks, I always have carts that I pre-fill prior to the trip...
Depending on how far I am going, depends on how many I pre-fill....Usually, about 5 - 7 pre-fill carts work for me no
matter how far I go,,,,Need to take breaks for coffee, ba
throom,,,,etc.....so I can always re-fill them at a gas station/
rest stop....It works great for me...Enjoy the Adventure..