Starting in 2008, new diesel trucks were required by the EPA to include an EGR (exhaust gas recirculation system), which routes exhaust back into the combustion chamber to reduce temperatures, a DPF ...
There's one thing that the new 6.4L Power Stroke, 6.7L Cummins, and LMM Duramax engines all have in common-they are forced to breathe through a diesel particulate filter (DPF). This "trap" is actually ...
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