RyanJames170 wrote on Dec 16^th, 2012 at 4:57pm:

There is a reason the other can get a lot more miles out of only 13,000 more fuel lol

Not sure I get what you mean there. :-/

Yesterday, I flew the 737-100 from KSEA to KSFO (~600nm). With the amount of fuel it used to go that distance, I would be worried that it would be very low on fuel by the time I flew it 1540nm, which is the maximum range for the 737-100.