I filled up and got 18.5 gallons at the pump. The tank holds 23. It was $40.75 to fill it up to 18.5, and I got 258 Miles out of the tank. That's almost 14 MPG.
Now, with that in mind, that was several starts and stops (moving stuff around in the garage), picking up mail at the mailbox, showing my friends the new car, etc. Which was a lot of starts and stops! Most of this was city driving, with 1 minor highway run (about 20 miles). I could have easily pulled over 300 miles out of the tank, but wanted to fill up as I was approaching the E mark.
I am not complaining though! It's better than what I was thinking it would be, and according to my friend, he's getting like 10 MPG on his Ford F150!
