It seems like my truck is going into regen more often lately. It will usually regen between 125-175 miles. But thats always a mix of highway and city only once in the last year did i get a regen that was just city and it regened at 79 miles. About 10 months ago i did a parked regen and then pulled my 5er up and over the mountains up to west virginia the trip was a total of 3700 miles and it was regening every 500 like its supposed to. After that trip it started to regen around 250miles and has slowly gone down to where its at now. When i tow around home the tempature never gets high enough to get much passive regen because its flat around here. The reason for this post is because i only drive the truck 2 days a week on the weekends. My daily driver work truck takes the brunt of my driving. Now it seems like every weekend it regens. Last saturday i took a 2hr drive of about 80 miles the speeds varried from 35-55 most of it was at 55 at 1000rpm in 6th gear. Now it had regened on friday night then regened halfway through this drive at 110 miles after that regen i started to pay attention and the gpl was climbing ridiculously fast like if the journy hadnt ended it would have regened at 50 miles or less. This drive was almost non stop. No stop signs and very few lights. After i stopped i got on the interstate and drove back home at 70 mph. At this speed and rpm the gpl climbed like it normally does about 1.25-1.5 mile per thousanth. My only idea is that its either normal or i have an injector that dripping. Dealership wont touch it because its still regening over 100 miles problem is this is my normal driving. Any ideas or recomendations? Maybe some injector cleaner? I have also done 2 parked regens in the last 2 weeks. Because it wanting to regen at inconvenient times.

 

Sound normal to me. I doubt any of the injectors are "dripping".

 

driving at 55mph at 1000rpm straight would be normal to regen at 50 miles? Doesnt sound normal to me.

 

you might not have completed the previous regen. So the DPF was at a high level since it didn't finish, so it could/would start a regen at 50 miles.

 

this really sounds like your driving conditions to me. What you could try to do is lock out 6th and try to keep a higher rpm and see if that helps.

 

the last few regens were completed

 

You are worry too much. If you think there is a problem, the go talk to the diesel mechanic at your local Ford dealership. I do not see a problem other than your driving habits and trips.

 

These trucks need to be "worked" to extend regen miles. Also, it could be that you had hit the 500 mile mandatory regen 89 (or however many) miles after you last regen.

 

I had noticed soot seeming to build faster recently also while monitoring it with the CTS, along with more frequent regens. Also had minor fuel dilution in the oil to prove it. All winter the truck was used as a DD with a lot of remote start and idle time to warm it up for kiddo every morning. Towed the 11,000 pound camper 200 miles at 75 mph and it passively burned the dpf down really good. Since then I've been locking it out of 6th gear on back roads and using tow/haul all the time. Helps keep the exhaust temp up some anyway.

I did get into a bad spot where it needed to regen but a bunch of consecutive shot trips just wouldn't let it finish. I did a manual regen with the CTS and so far its been sitting around 35% since.

The harder you work it the less it will regen. Hook some weight to it and see what happens.

 

I pull my 10k 5th wheel at least once a month but i live in South east Louisiana and its dead flat around here. Egt sits at 650 when pulling the only time i get to go uphill is over a bridge. Im going again in 2 weeks i will try pulling in 5th.

 

 

Only California and eastern Texas have diesel fuel with decent cetane ratings of 48-50 or so. Cetane boosters can help. Enerburn can help more with reducing soot.

 

 

I've noticed the Winter/Summer difference as well. I don't know if it is the fuel or the temperatures. I just sent Jane Gates an email to see if she can shed light on the phenomenon.

 

Remember that winter spec or winter blended fuel is lighter than summer fuel, so there are fewer soot causing molecules in winter fuel than in summer. In summer, we are not concerned about waxes clogging our fuel filters.