The dealer said that this is common and not to be an issue what is your input on it when it tells me to drive I drive sometimes it's 30% but it is never gone any lower than 20% ? 2015 6.7 f350

 

Strange mine was (deleted now) typically 3% after a regen

 

20% is normal. Sometimes you might see 15%.

Using ToprquePro, FORScan, CTS, etc, you might see 3% or less. Most see 15% as the lowest with the ICP Exhaust Filter Screen enabled.

 

My regens tend to stop about 40%. Still every 400-500 miles so it doesn't make any difference.

 

20% is the best my 2015 has done. Don't sweat it, just drive the truck.

 

I usually get down to 30-40 % on regens, that's it.

 

I get down to zero% on mine. Most of the time I stay at zero anyway and eventually hit a mandatory regen.

 

Those with deletes can ignore this whole thread....

all others listen up. During regens, it really helps to lock out 6th gear at speeds under 65, and 5th gear at speeds under 45. The mph difference in the non-lockout gear during regen is incredibly low. And it will get you down to 15-20 % on a regular basis. If you get to 15 versus 25, you will gain more miles until your next regen regardless of how you drive - unless you are a magic 500 mile regen, but even then it becomes easier to get the dpf filter to a lower % full during that 500 mile regens. And at 15% full you get better mpg than at 35% full - sad but true. This means more when running empty than loaded heavy, but applies to both.

Does it make 1/2 mpg difference over a full tank of fuel? No, but it makes a difference. Will getting down to 15% most of the time mean your dpf won't need to be recycled/replaced as soon - probably very likely. Remember EPA and Ford do not care how much it costs you.

 

I have a 2015 F350, how do I get to the screen that shows % on regen? Thanks.


Dave

 

I have done the locking out and letting the truck use what ever gear for regens. I have not noticed any difference in how low mine goes with is usually 20% and about 1/4 of the time to 15% (I think it does 15% more but I do not dwell on watching how low it goes). Most of my regen's have been no load when it goes to 15 or 20 percent.

The miles to the next regen also depend on "Passive regens". You can have regens and the % full might not be any where near 100%. It is the "magic" 500 miles since the last completed regen that Ford programmed into the DPF regen architecture.

One think I do wonder is the new regen strategy Ford deviced in the TSB for jackhammering. Does this allow a more clean burn during regen and to lower % full? Enquiring minds want to know.

 

You need to get the dealer to turn on Regen request via their VCMII/IDS

https://www.ford-trucks.com/forums/1...play-page.html

or use FORScan on a laptop and some type of OBDII adapter (bluetoothe or USD) to change the setting.

https://www.ford-trucks.com/forums/1...uilt-data.html

https://www.ford-trucks.com/forums/1...ut-dealer.html

 

Thank you.

 

My 2016's DPF has never burned down past 30% even on long stretches of Road. Guess your results will vary depending on your Truck

 

X2 Nipperdog. I had been back and forth across the country several times pulling a heavy trailer and i was locked in the 45 to 100% range and could not get out of it. Most were at 300 miles since last clean. Once i learned the lockout of 6th djring regen, i colud get it down to 30% and get almost 400 miles; then even higher rpm's got me to 25%, then finally a 500 miler at 95% The next one was the first time I saw 20%. After that another 500 miler to 15%. From then on, i would range between 15 and 85%, getting 460-500 miles between regens. Around town empty i would get 200 miles and always at full back dkwn to 45%. Now i very rarely get below 300 miles between regens because I can lock out gears and get down to 15-20% consistently.

I have only had access to California's great fuel twice and it did make a difference. Never used the good Texas fuel. I do use cetane booster in ever tank.

 

I've also tried the 6th lockout during regen and have seen no difference in time required to complete, or % when complete. I have recorded all the data during most of my regens wtih Forscan. This is not heavily loaded - either empty of with a largish camper on the back. A heavy load does affect the regen interval a little due to some passive regeneration, but so far the only thing that has definitely affected the interval is the Enerburn additive and the difference is fairly dramatic.