MPG
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Well that is a pretty new engine at 3500 miles. Diesel Power got a f250 with the 6.4 up to 19mpg on the highway...but that was just one test so I don't know how fair that represents the 6.4. I think overall, all of the new engines will have lower mpg then their predecessors due to regeneration, which increases fuel consumption and probably negates any positive effect by the DPF....stupid EPA
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