This first image demonstrates that I reached 127.6 miles on somewhere between 15-20% of fuel consumption. Twenty percent of a 14.5 gallon tank is 2.9 gallons. At 128, the fuel gauge dropped one bar.
(127.6 miles / 2.9 gallons) = 44 MPG
The second image is somewhere between 20-25% of fuel consumption. While this picture shows 145, I managed to achieve 157 miles before the gauge dropped.
The calculation below shows what I have gained thus far.
Twenty-five percent of a 14.5 gallon tank is 3.625 gallons.
(157 miles / 3.625 gallons) = 43.3 MPG
Looking from the reverse, I should go an optimal 30 miles per gallon times 3.625 gallons is 108.75 miles. However, I've gone 157 miles and the gas gauge just reached 1/4 of a tank. That is at least an improvement of 48.25 miles.
If I went 150 miles at 30 MPG, shouldn't I have used 5 gallons? Yet, I've used 25% of my gas tank, or 3.625 gallons. That is a fuel savings of 1.375 gallons (or $5.29) so far!
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