Excessive Fuel in Engine Oil - 6.7 Engine

[Frank T]

Changed Engine Oil & had analysis done when the overhead display notified me of the need. The truck had 8K on engine and 4K on oil.



Blackstonre reported 7. 5% (1 qtr) of fuel in oil. I noted this on the dipstick before I drained it and I see the volume increasing again after 1,500 on the oil now.



Dodge check the injectors. They're not leaking. They called S. T. A. R. support and was informed that this is acceptable with these new engines.



Anyone else seeing this with their trucks with the new 6. 7?



Thanks,

Frank T

 

[CSkal]

What? How is it possible that is considered an acceptable condition? Yet another reason that the newer trucks seem to be getting poorer mileage.

 

[gsbrockman]

Dodge check the injectors. They're not leaking. They called S. T. A. R. support and was informed that this is acceptable with these new engines.

Get it in writing from the dealer and CYA !



Greg

 

[LFalconer]

I too have noticed that the oil level increases over time. 7. 5% Fuel dilution is unbelievable in terms of long term reliability.



Anyone else concerned?



My 02 Ford PSD at 100K miles with 5100 miles on the oil has less than 0. 5%... like 0. 1%



Luke

 

[sag2]

The oil change light algorithm is the light should come on at approx 4% fuel dilution. Do you know the flash level you are at? They pulled the AW flash this week off the system so if you are not at AW I would wait until it is available again and get it flashed.

 

[Frank T]

STAR support informed the Service Manager that the light should turn on at 7%. It did. I changed the oil 250 miles after the light turned on and Blackstone Lab reported the 7. 5% I mentioned above.



What I want to know and have yet to get from Dodge is what is occuring that is causing the excessive fuel in the crank. #@$%!



Frank T

 

[sag2]

The fuel is from injection events in the exhaust stroke to light the fire in the DPF. On the exhaust stroke the unburned fuel can get by the rings easier. That is why it is so important to pay attention to the overhead when it tells you the oil needs to be changed. The overhead may not be perfect but it is close enough.

 

[2Rowdy]

It would be nice if it could be explained how the pickup knows that 7% fuel is in the crank case. I chanded my oil last time when the light came on an had just a trace of fuel in oil(according to Blackstone). I understand that there are more parameters than this but it is not taking samples its self. I am still going for extended intervals with testing. Edit. I remember there being a post on here about 4% being the acceptable level. Someone please let me know is acceptable or not. I guess 7% is it if that is what starscan tech said.

 

[DLGreen]

the 6. 7 is junk no good

 

[EB]

the 6. 7 is junk no good

I don't know about that. I've got over 102,000 miles on mine, no problems at all until 50k, then replaced a throttle control valve. No problems since.



I believe everyone needs to remember how many of these trucks are out there running without any problems. If you don't have problems, you aren't as likely to post and comment as you are when you have a problem. If you are unhappy with the truck, get rid of it and get something that will make you happy, that's what I'd do. Just remember this, nothing is perfect. Don't believe that? Go over to the Ford or GM sites and take a look.

 

[Frank T]

To the person that comments that the excess of fuel in the crank can be from the DPF process... ... ... what is your source of this info? What are the impacts on engine life?

Thanks,

Frank T

 

[GButia]

the 6. 7 is junk no good

Have you driven one? I did and was really impressed. The truck I drove was a 6spd. auto short box and that truck ran awesome. The exhaust brake is another great feature. I really am still in shock over the whole thing. I thought I would never buy one but I think I just might. This 6. 7 section on TDR seems to be really stagnant... . if you look around at some of the other boards there is a lot more disscussion going on. I really beleive this 6. 7 is going to turn out excellent in the end.

 

[betterthanstock]

I think for the people who use their trucks on longhaul, like EB above, they will do great, at least for the first 300K or so.



For those who use them as grocery getters, I think they will have lots of problems, and it's probably better now to buy a hemi, and keep the money, and spare yourself the trouble of the 6. 7.

 

[gsbrockman]

the 6. 7 is junk no good

Welcome to Turbo Diesel Register !



Impressive first post ! :-laf



You'll go far here !



Greg

 

[2Rowdy]

the 6. 7 is junk no good

I have had very minor issues with mine. 27000 miles. I would trade my 5. 9 again.

Oh yea, welcome.

 

[courierdog]

I have 78,000 Km on my 6. 7 Pickup and has never exceeded 2% fuel dilution typically less than 1% fuel dilution.
The only time I have ever had the incidence of high level of oil is where I did not watch the tech doing the oil change. Found he put extra oil in as the dip stick came back low after filling with 3 Gal US. This engine take time to allow for full oil return to the sump.
As I run about 10,000 Km per month, the nominal oil change interval is every two weeks. I check it regularly as my truck is on the road seven days a week and I cannot afford any down time.
Great Truck and the only thing I would do different is to add more options up front.

 

[EB]

For those who use them as grocery getters, I think they will have lots of problems, and it's probably better now to buy a hemi, and keep the money, and spare yourself the trouble of the 6. 7.

Don't disagree with that at all.

 

[bruiserbob]

Fuel in oil

Got my first change on my 2008 Mega when the overhead came on at 3105 miles... went to 3300 before changed. Got my Blackstone report showing all

was normal except for 21/2 percent fuel in oil. Haven't talked to service

manager since receiving report.

 

[Simplysmn]

the 6. 7 is junk no good

Welcome D L Green now you can explain why you think its junk or better yet just go buy a furd and run your lips else where :-laf

 

[SHobbs]

Ok correct me if I am wrong here but, I have always been told that fuel in the crankcase is a no no. I don't see how any fuel in the crank can be good. Wonder what the word is from Cummins?