last fuel up . miles 318333 the miles before that 318079 that = 254 miles . not according to fuelly the correct answer is 35 miles ! i went back 3 fillups and rechecked . all info correct .....i guess i really did get 4 mpg on that last fillup and dreamed all those miles
Looks like you just have a bad odometer reading. Your odometer reading on August 15th was 318,298 which is quite a bit higher than the surrounding readings. If you fix that up you should be set. Here's more info about editing a fuel-up.
It's pretty easy to spot these problems if you click the "View All Fuel-ups" link under your log book. That gives you a list of all your odometer readings.