I think that the pump last time overfilled a little, or filled more than the other pumps I have used. The fill-to-click long-division method gives 47.8MPG! This was with 65 miles of city driving and then about 250 miles of highway driving. If you do a weighted average with the 65 city miles at 35MPG, the highway is over 50...but I am skeptical. Either way, I am pretty sure this trip was over 45MPG, which is totally awesome. I attribute it to the upped tire pressure and more experience driving slowly. Thanks for the help everyone! Any more ideas would be awesome!
I think I'm going to build an OBDuino too, and that will make it even better.
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