[Ml504]

As the title states my 2011 6.7 has 2800 miles on it and last week I checked the oil and it had a strong diesel smell to it and was about a half inch over the top of the upper full mark. Brought it to dealer and he verified the high level and he instantly commented on the smell of it. I did tell them it has been going into regen about once every 60-70 miles...I blame it on the constant short trips/stop and go driving.

The result was he applied the latest tsb, changed the oil, and said to monitor the oil level. I really don't think this is going to address the issue at hand. Any thoughts? The truck was built in early february.

Thanks,
Matt

 

[Mballspowerstroke]

I've only seen 6-7 regens in 7000 miles. I drive a lot of sort trips. Your regens seem excessive.

 

[chris1450]

I've only seen 6-7 regens in 7000 miles. I drive a lot of sort trips. Your regens seem excessive.

I think you were missing a few messages that came up. I it is easy to do, the notification doesn't last very long. Mine was regenerating about every 200 miles for quite some time. Now that I have about 6,200 miles, it doesn't regen much. But the OP does seem to have to many regens as evidenced by the high oil level. Hope they fix it for you.

 

[Sirius Rich]

Sounds similar to what I saw at your mileage. I sent an oil sample to Blackstone Labs and found 2% diesel in my oil. Much better than I thought I would see.

My oil levels would be up to 3/4" over the full mark on the dip stick (cable). I have about 19,000 miles now and have stopped checking the oil levels. I have learned to trust the truck and my dealer. I just changed oil last week and sent another sample to Blackstone for analysis.

My regens are coming up at 100 to 150 miles on a regular basis. I drive a combination of city/hiway/towing and about 4000 miles per month.

 

[king rancher 1]

how does diesel get in the oil

 

[Sirius Rich]

how does diesel get in the oil

During the regen process.

I should get the results of my last oil analysis back from Blackstone early next week and interested in comparing with the last analysis of 12,000 miles ago. My engine should be broken in by now and interested if the diesel % is lower or not with the latest oil sample submitted.

 

[king rancher 1]

i though that the 6.7 used only one bank to regen but thats nice to know. has the truck said to change oil because of this, just wondering

 

[jermort]

The 6.7 does in fact only use one bank (left) during the regen process. This is meant to keep raw diesel out of the EGR workings.

jammer

 

[Ml504]

I would have thought if the oil was damaged enough, the message center would have said oil change needed (if I am understanding how the oil life monitor works). After reading everyones responses I really wish I would have sent in a sample to be tested just for my own curiosity.

 

[jermort]

I would have thought if the oil was damaged enough, the message center would have said oil change needed (if I am understanding how the oil life monitor works). After reading everyones responses I really wish I would have sent in a sample to be tested just for my own curiosity.

The 'oil life monitor' is actually a misnomer. No actual monitoring of oil condition is performed. The computer 'calculates' oil life using many parameters such as: engine hours since last change, idling hours, heavy use hours, etc. The computer actually has no way of knowing that your oil may be too contaminated with diesel.

Hope that helps.

jammer

 

[BeatMarti]

The 6.7 does in fact only use one bank (left) during the regen process. This is meant to keep raw diesel out of the EGR workings.

jammer

It also injects the extra diesel periodically during the exhaust cycle of the left bank cylinders only. This is why the engine performance is unaffected by regeneration. I have not seen ANY measurable change in oil level on mine (F550) and I get about 800 miles between regenerations. Since I installed my Insight CTS I can actually monitor the DPF Soot/Volume value allowing me to see the effect of passive regeneration. I can also see the Fuel rate and the effect on it during the regeneration which led me to the conclusion that the exhaust cycle injections only occur every xx cycles.

This is quite different from the 6.4L which uses "late" injection coupled with about a 10% power loss during regeneration and a much more severe oil dilution problem.

 

[BeatMarti]

The 'oil life monitor' is actually a misnomer. No actual monitoring of oil condition is performed. The computer 'calculates' oil life using many parameters such as: engine hours since last change, idling hours, heavy use hours, etc. The computer actually has no way of knowing that your oil may be too contaminated with diesel.

Hope that helps.

jammer

One of these parameters SHOULD be the number of regeneration cycles since the last oil change - each cycle presumed to dilute a little.

With that many regen cycles the engine might be throwing some codes as P2459 or related. If the mileage between regens drops below some threshold (I believe it is set to 27 Kilometers) this code will be set.

 

[guardrail22]

actually the problem is Ford refuses to consider the use of a ninth injector in the DPF for regen.

 

[huntindog]

actually the problem is Ford refuses to consider the use of a ninth injector in the DPF for regen.

Yep, X2

 

[Contradiction]

I checked mine today. At 3200 miles it's about 3/4 of an inch over the full mark and really black. I didn't notice an overwhelming diesel smell to it but I think I'll take it in this week and get it looked at.

 

[Ml504]

I checked mine today. At 3200 miles it's about 3/4 of an inch over the full mark and really black. I didn't notice an overwhelming diesel smell to it but I think I'll take it in this week and get it looked at.

Let us know what the dealer says please...

 

[Painted Horse]

No Surprise there. Oil in a diesel engine is ALWAYS black.

 

[huntindog]

No Surprise there. Oil in a diesel engine is ALWAYS black.

True, and now he has an oil well under his hood. All he has to do is bottle it and start selling it!

Win, Win!!

 

[EricM]

Just out of curiosity, doesn't the 6.7 have the injectors under the valve covers like the first generation Duramax did? If so, I wonder if these high oil level/dilution problems are caused by a leaking injector or fuel line.

 

[Sirius Rich]

What's up with Blackstone Labs? They charged me weeks ago, but have not sent my report. Their website is not fully functioning either. You can not (or at least I can't) get to the report pages or log in.

EDIT:

I called Blackstone Labs and they said they were having problems with their website, but they did send me my report and analysis. I am happy to say that my fuel percentage was down from my previous sample. 1% from 2% and all other parameters were nominal.