I will comment on the 13 emission, At Present I have 6400 miles on My 1st 13, I just drop the DPF again its perfectly clean a film of soot I blew it out with My blower and finish it off with air, then I removed the intake form the EGR,WOW its clean, the reason I am perform these actions is the Engine will be getting some HP added, an I want to know the before and after effect. Keep in mind MN has 5% mandatory Bio-Diesel and this helps considerably.
I also drop the factory oil , The results were . 05 fuel at 6400 miles everything else look good , it looks like the days of contaminate fuel ,cog filters (DFP) are gone at factory power levels. Mileage is equal to all My prior 5. 9s and way better then the 07. 5 6. 7 I returned when the lease was up.
DEF is completely demand driven, Grocery getting will NOT increase its use. It is mixed at fuel ratios.
I also drop the factory oil , The results were . 05 fuel at 6400 miles everything else look good , it looks like the days of contaminate fuel ,cog filters (DFP) are gone at factory power levels. Mileage is equal to all My prior 5. 9s and way better then the 07. 5 6. 7 I returned when the lease was up.
DEF is completely demand driven, Grocery getting will NOT increase its use. It is mixed at fuel ratios.