[quote=FAIR_CHASE] Adding a 9th injector did little to help the emission issues.
Where is this 9th injector at? I read a lot of information about the DPF before I bought my 2012 F250 and never seen it it any of the Tech briefs regarding DPF's.
The fuel mpg loss comes from the extra fuel injected into the engine during the regen mode and the EGR is open more during this to help raise EGT's buy raising the intake air temp. This what I have read several times. Ford's tech information reads the same. Maybe the 2012's are different from the older DPF trucks? I hope I haven't been reading inncorrect information.
