Have only had the MH for a few months now and have only filled it up 3 times.
Its a 55 gal tank ,each time have only had to put at most 40 gals and it took forever. Several people came in slide their card/went in paid came out filled up went back in and got their change and left before I finally filled up 40 gals! Then get to wash the windows ,check oil, do the walk around check list etc.
Its a good solid 20 mins to fill up then another 5 min to do the other stuff .
I've crawled around underneath and everything looks tight , no loose hanging hoses no kinks/ collapsed areas in any of the lines etc.
Its just a piss poor design !
They could have designed it alot better, molded flat hose for clearance and angle into top of fuel tank, then minimum 2.5 hose to filler neck. Would have fit perfect !