Why is filling tank necessary
Why is a full tank necessary to accurately determine fuel mileage? If you have the amount of fuel you put in, and the miles you drove, why can't you just figure fuel mileage on that? I mean, my truck has a computer system that figures my fuel mileage just fine
The reason I ask is because I cannot ever fill my tank. I run very heavy loads that are at most 400 miles 1 way.
I want to use fuel gauges for the averages.
Is this a worthwhile discussion?