I'm at 16k miles and last three tanks ran 19.4, 19.4 and 21.5 mpg (numbers all hand calc, I record ever tank since new). The 21.5 was all highway at 50-60 mph following my buddy who was towing a tractor for me. I just have egr unplugged. Looking forward to deleting dpf and nox filters and egr at some point when I have time.
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2007 quad cab short bed 4wd 3.73 6.7l 6-speed manual what else is there?
