thats why you get two tanks and depends on what kind of driving your doing, usually ur not driving to long of distances if you have a crawler.. plus just about everyother gas station can fill tanks...  so its not that big of a problem... yes finding a station that fills propane tanks is 1 in every 2 or 1 in every 3 stations but i cant recal any trip that i have gone on were i havent seen a place i would be able to fill, i guess it depends on were you live but im in northern cali and it wouldnt be a problem at all.