Ok, so the first take had a few minor glitches here and there, but was still able to produce numbers suggesting 35 MPG. There were some sight gauge leaking problems (leaked water out of the tank overnight) and some issues with old jumper cables. Now that those have been addressed, the initial results look even better.
Here is the method I am using now to determine the miles per gallon. I think that this method is the most exact I can use.
The picture shows that the gas tank reads 10% empty. In reality, it is somewhere between 10-15% empty. Once it reaches 15% empty, another 5% bar is lost. So I will look at it as a range from 10% to 15% empty from a 14.5 gallon tank.
If it's 10% empty, I've used 1.45 gallons. If it is 15% empty, I've used 2.175 gallons. (14.5 x 0.10) or (14.5 x 0.15)
In the first case, since I travelled 105 miles, my miles per gallon would be (105 miles/ 1.45 gallons) or 72.4 MPG. That is the best case scenario and I don't think it fairly represents the reality of the situation.
The second case, (the "worst case scenario"), it would be (105 miles/ 2.175 gallons), or at least
48.3 MPG. I believe that this is very close to the truth because just after taking this picture, I noticed that I lost a 5% bar on the gas gauge down to 15%.
This is also good because I can look at it from the reverse direction. If I went 105 miles at an optimal 30 MPG, then (105 miles * 1 gallon/30 miles) = the number of gallons. I should have used 3.5 gallons, but the gas gauge says I used at most 2.175 gallons. So I picked up 1.325 gallons of fuel. In reality, I didn't add any fuel. It is simply the benefit of adding Brown's gas (2 parts hydrogen and 1 part oxygen) to the air intake system.
This concept has been around since 1935.
