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Still need the fuel burn graphed. Available here or on Fuelly or similar. Just add notes per tank.
Around here it’s understood that the trend is what matters for determining FE. First, against a baseline. The starting point. Calendar Year 20XX at Y-miles and Z-gallons. Average MPH fir the year (Engine Hours into miles)
It also means consistent testing. Run the highways at the same speed. Etc.
We know that reduced fuel burn is mainly a matter of a higher average MPH. As a result of fewer engine starts, especially from cold. There’s a corresponding reduction of total miles, though it may not be high.
Most can break out highway versus city miles. Or, miles while towing or heavily laden. There will be one type of use that predominates.
What is the predominant use, and show us how changes have increased the Average MPH (with any changes to total miles) and,
How accomplished.
Frankly, there’s not anything yet you’ve done that can’t be accounted for by driving style changes. We are left hanging in the air with nothing to grasp.
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