The truck we posted has no performance mods. Maint is done on the Ford heavy duty use schedule and by Ford. We do have a aftermarket gage installed and we watch our EGT and boost when towing. We tow at 62/65 MPH. We do very little city or stop and go driving. Our regens are few and far between and we can not miss them as the EGT temps go up significantly when in Regen. We had two regens driving back from Florida 1200 miles and have not had another since returning in mid May.We have the 4:10 diff. We are very light of foot. Don't know why this 6.4 performs so well but it has done so since new. It is rare that we would have a truck over 3 or 4 years but this is a keeper.
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