Has anyone else experienced what seems like a drop-off in fuel economy (according to the EVIC) after installing a lift pump? My hand-calculated mileage seems fine, but the running total on the headliner console always seems to be about 3mpg off (farther than it already was). Could this be due to how/where it measures fuel usage? Perhaps it's calibrated for the gph of the suction pump and the increased flow of my cummins unit is throwing it off?
Dan
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2005 Silver CRD Limited

245/75R16 GoodYear Duratracs
Fumoto drain | ProVent CCV Filter
Stanadyne FM100 filter | Cummins fuel pump
GDE Eco | SEGR | BoulderBars | FrankenLift | Frankenskids