A clogged diesel particulate filter (DPF) can quickly impair a truck, dragging down fuel economy and increasing downtime.
TravelCenters of America Vice President of Truck Service Homer Hogg noted that symptoms of a struggling aftertreatment system could include your engine losing power; poor MPG; exhaust smoke; coolant loss with no external leaks; intake leaks; and/or a clogged or extremely dirty air filter.
