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fule mileage??? where did it go?
2004 f250 6.0 diesel bad fuel mileage! FICM producing right voltage, new wheel bearings, all filters always changed, I have an edge tuner and it does not matter fuel saver tow mode or off still only get 12.4 MPG? When I got this truck I was getting around 15-16MPG where has it gone? EGR connected or disconnected same mileage. K&N air filter or the stock one no change? The truck runs great no issues lots of power I can pull my trailer and bobcat with no issues over 10,000lbs for the hell of it I put in a new ICP and EGR feedback sensor (someone told me they might help) I don't even get better mileage on the highway without a load? I used to get 18-19MPG on the highway it has been like this for at least a year, I am getting fed up with it every time I go to the fuel pump! Does anyone have any suggestions? I cant seem to find the answer.
2008 6.4 diesel, dpf and egr delete. running gearboxz for tune