Have a 08’ 6.4 liter that has had a reneging issue. Seems to make a nasty stinky burn frequently. After a year of this the tool box came on and seemed to be too much oil. Now we have fuel in the oil. Seems to run fine. Isn’t knocking or making any noises. Changed oil and isn’t really making it fast. Any recommendations or anyone that’s had similar problems? Seems to be running fine post oil change and no power issues.

 

It sounds like your truck engine and exhaust is stock and the DPF filter regen is putting diesel fuel into the crankcase. That is normal in the stock configuration but a bad design IMO. Is your truck stock? How often do you change the oil?

 

5000-7000 miles per oil change usually I’d say. Everything is stock. It does the burn very frequently and smokes a nasty smelling white smoke when it does

 

The white smoke could be that the truck is not fully up to temperature when it goes into regen or the previous regen was interrupted by turning off the truck and therefore restarting the regen process early in the next drive before it’s hot. This could also add to your perception that it is performing more regents than usual. What type of driving do you usually do? Short trips? Long trips? City or Hwy driving?

 

Short trips. From one farm to the next. 6 miles or less. Pull a trailer once a week loaded. Take it on the highway once a month for 15-30 miles.

 

Look up severe duty schedule vs normal

high idle time, short trips, etc, fall under severe duty schedule .

if your diesel usage results in “making oil” , 5000 plus oil maint schedule would be out of the question.

 

There are a lot of owners in your situation. At least there were over the years. Most have abandoned the cause because their engines melted.

Are you in a emissions state where your tested?

Denny

 

Illinois doesn’t test for emissions

 

You said the exhaust was white and it stank.

Did it smell sweet, heavy unburned fuel, or your wallet?

If it smelled sweet or you have noticeable coolant loss, could explain the smoke. Mark your degass level with a sharpie and monitor. If your topping off regularly, there-in lies the problem.

The other direction I'm trailing is your regen cycle and driving habits. These are awesome hot-shot style trucks. They love to work and they hate a brake pedal or red lights. They're fit for long hauls.

You may have a clogged DPF and that would explain the constant regen and the oil pregnancy. There are many hacks on you tube showing you a home version of DIY, but if I had to do it more than once in my lifetime, they make other trucks. My advise, since your in a neutral test state, eliminate the DPF (Delete), after you find a tuner to ignore the codes. I run a DPF-R and have for well over a decade. No performance gain but no regens and no constant oil babysitting.

If you decide to delete if nothing else applies contact me thru this thread. I have stepped thru a delete process. Things to know, all good.

BTW, if you have a wife/girlfriend/date............take her out on a cruise to the next county that's furthest away from you and just run it. Record your liquid levels before, midway, home.

I honestly think your starving that girl.

Keep us in the loop!!

Denny

 

When it’s like that it smells like sulfur and can’t hardly drive behind it smells so bad

 

Unburned fuel. I believe your DPF is clogged. Delete it asap.

Denny