When my 05 LE was 2 weeks old, I got as far as 650 miles on one tank.
Of course, those days are over...
In Vegas, with 95% city driving, trips shorter than 20 miles, I average about 26 mpg. Highway still good with about 38-40 mpg.
No one gets good city gas mileage in Vegas.
how can you get 650?
I had an 05 LE automatic. the light went on and I had 430 miles. It was about 40 mpg that particular tank--and I only had at most 3 gallons left (120 miles).
So, 550 would be the max--unless you had extended fuel tanks.