Fuel In Oil?

[DunnC]

I got my oil report back from Blackstone and I had 2. 5% fuel contamination they say anything over 2% is not good. They also found high levels of iron 46ppm the avg. is 19ppm has anyone here had this problem or is this really a problem? I am running Valvoline Premium Blue 15w/40 and changing at 5,000 mile intervals. They said the TBN level was good at 5,000 miles. The report is below take a look.

 

[bruiserbob]

Fuel 2 1/2%......also

On my first oil change at approx 3300 miles, my 2008 Mega also had the same

percentage of fuel in oil with everything else showing normal for a new engine

break-in... . How many total miles did you have at the time of your sampling?

I plan on running 5000 miles between changes if I don't get an EVIC to change sooner. Now at 6100 miles with no message, but oil level continues

to show high on the dipstick.

 

[DunnC]

On my first oil change at approx 3300 miles, my 2008 Mega also had the same

percentage of fuel in oil with everything else showing normal for a new engine

break-in... . How many total miles did you have at the time of your sampling?

I plan on running 5000 miles between changes if I don't get an EVIC to change sooner. Now at 6100 miles with no message, but oil level continues

to show high on the dipstick.

I have 22,000 miles on my truck. Most of the time i get a EVIC to change my oil at about 2,000 to 2,500 miles after I change my oil, I just reset it and wait until the second time it comes on. There is no way i am changing my oil every 2,500 miles. The oil still test good at 5,000 miles.

 

[sag2]

I have 22,000 miles on my truck. Most of the time i get a EVIC to change my oil at about 2,000 to 2,500 miles after I change my oil, I just reset it and wait until the second time it comes on. There is no way i am changing my oil every 2,500 miles. The oil still test good at 5,000 miles.

It appears in your specific duty cycle the oil change reminder is fairly accurate. You say the oil tests good, but your test @5000 miles shows . 5% over the recommended level. If you have not had the latest flash done I would do it and also check your idle time.

 

[THoltz]

The oil samples and lab analysis is interesting, but, the report DID NOT say the oil sample from DunnC's truck had high diesel fuel contamination. They said it had a high flash point and they interpreted the rest. My point is, you have a $10,000 engine. Change the oil regularly every 3K (heavy loading and high ambient temperatures) to 5K (commuting).

 

[lubeguy]

you did not mention the duty cycle of the unit. your dealer can give you your percent of idle time etc. it isnt too un common for a new eng to have hi iron content. oil dilution seems more of a issue on newer engines. as with any diesel if it is not worked the dilution goes up.

 

[PaulBarker]

Remove the DPF, Get a DPF Delete and this will solve your problem. The fuel is getting into the crank case from the Regen Cycle. Its diesel bypassing the rings during a exhaust stroke of the Regen Cycle.

 

[WNowlan]

They did not say fuel was present. The are making a guess based on vis being low and flash point. I would bet you do not have 2. 5% fuel contamination. These oils are blended to the low end of the vis grade for a 15W 40. It could be as easy as that. If you belive you have fuel have then test specifically for fuel. They also do not have a whole lot of data on these engines. Fuel will cause bearing wear to increase. It looked good to me. Need a trend to make interval suggestions.



Me: Lube engineer for 25 years! Desiel Specialist. NOW: Boat Dealership owner!

 

[DunnC]

They did not say fuel was present. The are making a guess based on vis being low and flash point. I would bet you do not have 2. 5% fuel contamination. These oils are blended to the low end of the vis grade for a 15W 40. It could be as easy as that. If you belive you have fuel have then test specifically for fuel. They also do not have a whole lot of data on these engines. Fuel will cause bearing wear to increase. It looked good to me. Need a trend to make interval suggestions.



Me: Lube engineer for 25 years! Desiel Specialist. NOW: Boat Dealership owner!

Thanks for the info.

 

[PaulBarker]

They did not say fuel was present.

I see you do not own a 6. 7. I am not a diesel specialist either. But i promise you that you are getting fuel in your engine on a 6. 7 due to the regen process. If people would check there oil level after they do a oil change and verify that the oil is on the safe mark. Drive it for a week or so you will see the oil level has risen. It will vary from person to person and how many times the truck goes into regen. The 6. 7 (as i was told) has a sensor to detect the amount of fuel in the lube. when it reaches the Calibrated mark the change oil comes on the over head(mind you i heard from other sources that it was 7%, thats pretty high). also from the time that i change the oil in my truck to the time the over head came on(it varied from 2500 to 4000 miles) the oil level has risen 1 1/2" on the dip stick. Now that i dont have a DPF nor does the truck regen i am able to run 7000 miles on a single oil change and my oil level does not rise.



so that tells me that that is true.



I am not trying to insult your intelligence, and i am very sure if i knew you in person you would be somebody i would turn to for diesel questions. But i promise you that is the problem

 

[PaulBarker]

They also said he had more than average metal or iron shavings in it. Would that tell you that a bearing or something that has movement and contact with metal is wearing a bit fast. He has 22,000 miles on the truck, that should be well past the break in period

 

[jmorse]

Hey PaulBarker, did your MPG increase by deleting the DPF ? Did you gain better performance?



Jim

 

[PaulBarker]

there was a dyno run with just the dpf and cat deleted, still had the stock down pipe with its cat on the truck. but the truck gained 10hp and 85ftlb at the rear wheels. i gained about 2mpg. so i am at about 14-15mpg. i have a friend that has a QC short bed 2wd and he is getting about 21mpg now. . also i just put on a 5" TBE and he has a 5" TBE. we got the kits from deletedpf.com and they are starting to test there code free kit monday. with that kit there will be no need for any sensors in the exhaust, you will unplug them and plug them into your module that you get from them.