Lovebunny, that can't be right. Next time you fill up, reset your odometer to 0.
Then, when you fill up after that, note how many gallons it takes to fill your car.
Divide that into the number of miles you have driven since your last fill up.
That should give you your MPG...
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On a seperate note, I filled up yesterday.
I put in 13.5 gallons. Drove 290 miles on the previous tank = 21.5 MPG
( mostly going to work and back - 20 miles each way non-highway )
Still wondering why I only averaged 23 MPG on my road trip
Must be that sticky gas pedal skip mentions
Nick