On a tank of fuel. Traveling through the hills of western NY (primarily I-86) from Watkins Glen to outside Erie PA, I was able to hit 365.40 miles before the LOW FUEL light came on. Speeds were between 70-75, but it was quite hilly.
Fuel mileage was 17.78 mpg (20.546 gallons to fill).
The next leg from Erie to Rochester Hills gave me 18.6 MPG, but I was traveling on flat land, through Ohio (and it seemed like there were Ohio state troopers every other mile) so speed were between 65 and 70, then back up to 80 in MI
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(I actually have a photo of the low fuel and mileage, but it appears for some reason, I cannot link to Comcast anymore.)