Hydrogen injection update - Take 2

My gauge showed that I had used 65% of my fuel and I was well on my way to 70% when I decided to fill up at Sheetz. I should have been somewhere between 9.425 gallons and 10.15 gallons. Apparently, I may be reading the gas tank indicator incorrectly, as this picture shows.





Usually, I fill up on over $40 at about this time, but I was under this time by 4-5 dollars.

What these numbers prove on "Take 2" is 285 miles divided by 9.251 gallons =

31 MPG.

Based on these first two tests, which did have a few minor glitches, I figure being somewhere between 31-35 MPG by the time I reach 1/4 of a tank of gas.

When I am over 3/4 of a tank, the MPG seems to be higher (in the 40-45 MPG range) - but the numbers average out by the time I get down to 1/4 of a tank. What I may do next is try to confirm the gas gauge readings by filling the gas tank with x number of gallons when the tank is over 3/4 full. I will see if the gallons I am figuring out from the gauge match up with the actual gallons I put in.

If I can confirm those numbers as accurate, I will probably keep my tank at least 3/4 full at all times to get the better mileage.