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Increasing milage on 7.3 Diesel Excursion
I am new to diesel stop and am looking for some proven experience anyone has with Excursion 7.3 and getting them to improve milage. I have owned mine since it was new and have 239,000 miles on it. It got about 16.5 mpg when I first bought it and it is still about the same. Have a Superchip and doesn't change milage on any setting. 1 time I got 18.5 mpg on 1 tank full going from Texas to Colorado driving about 70-75 mph. I check the milage by comparing miles driven and gallons put in the tank, not the digital readout overhead.
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