It's a difficult time of year to test ecomods. Everybody's fuel economy is falling with the onset of winter. Weaker gas, thicker air, thicker oils and greases, colder tires, colder engines, and many other conditions contribute.
One of my favorite add-a-gauges for the SG is the trip fuel consumption gauge, which shows you how many gallons of fuel you burned since you last started the car. My commute would burn 0.35-0.45 gal, and I looked at it every day to see how well I was doing. Overall, monitoring my fuel consumption enabled me to improve it.
This time of year, the goal isn't to increase MPG, but to reduce its decline.
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