Join Date: Aug 2001
Feedback Score: 0 reviews
If your truck is stock, it regenerates DPM in the DPF by adding fuel to the exhaust stream to increase exhaust gas temperature. The DPFs for the 6.4L are non-catalyzed and need help to regen.
From what I can gather, the regen interval is somewhere around 200 miles which was Ford's answer to prevent spontaneous combustion of DPM in the DPF when it became overloaded. The original interval was greater but lots of folks decided that they knew better than the truck and ignored regen reminders. The result for many was a vehicle fire that started in the DPF and involved the whole truck.
Anyway, fuel burner regen cycle requires fuel, dramatically reducing fuel mileage. The 6.4L engine is not bad, it's limited by it's archaic emissions system.
'00 F250 XLT 4x4 (born on 6/00), manual tranny & hubs, SPA Techniques EGT/Boost Gauge, Homemade Return Fuel Regulator, Toro Liner, 203* T-stat and Coolant Filter, LUK Clutch, flywheel & pressure plate, Amsoil Dual Bypass Filter