I dont get 5 gal in mine.Like I just said I get 4.2 .I have only went to reserve twice and even then I only rode for a mile or 2 before filling up.So,,,,3 gal is my normal fill up and 135 miles is what it goes to.
Check out this thread.Im not the only one getting good mpg.
http://www.bonnevilleamerica.com/forums/...5&fpart=all