My first two re-fills were with the low fuel light on and only got about 15 gallons or so. Pretty conservative warning, but as long as you know that when the light comes on, you've still got at least 50 miles or more.
I have gotten right around 20 mpg on so far in mixed driving-re-filled at about 300 miles.
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'02 RRP EX NAV
Mudguards,cargo tray,Weathertech mats, Bug deflector, lampguards, gold emblems, 17" TSW Spirit wheels with 235/55 Dunlop Sport A2 tires (Some installed, some in the garage, some on the way!)
GOD BLESS AMERICA!!