I've been wondering this for quite some and just never got it figured out so finally decided to ask you wise folks. So I have a 2006 Seasport with twin 60 gallon--long skinny--tanks for a total of 120 gallons. That said, even after running one tank on empty for quite some time--like 35-40 minutes pecked completely on E the tank still only held a smidge over 48 gallons.
So here is my question, did I likely have an empty 60 gallon tank that would only take 48 gallons, or still had 11+ gallons left and my fuel gauge is just that far off because of the placement of the float or whatever? And when I said it would only take 48 gallons that's it, anymore and it will puke out the vent on the side.
Also, anyone have an idea how much fuel is left in these tanks before the pickup quits out? I would assume that at some point the pickup will stop working, but would bet with these long skinny tanks there is still some amount of fuel left.
One of these days I will get brave enough to just run one of them dry and see.