Diesel fuel in engine oil

[TSPowell]

I just got my oil sample report back from Blackstone and had 3. 5% fuel in the oil. Previously its never been above 0. 5% I had drove the truck for 2 1/2 hrs then took the sample, so it had plenty of time to burn the fuel off. Are there other way for fuel to get into the oil other than an injector problem? I never do any prolonged idle times. The truck now has 132,000 miles and lately it seems like Ive noticed a different sound from the engine, more ticking. Ive been wanting to do Flux 50hp injectors from Don M. I also had a higher iron(63) and copper(67) reading than normal. Its Amsoil 3000 series with 14,000 miles on it.



This is what they wrote:

This oil hasn't been in use as long as the last sample was, but wear metals are generally a little higher than

they were last time. Aluminum only increased by 1 ppm, so we're not too concerned about that, but the iron and

copper increases are unusual. This shows more wear at steel parts (iron) and brass/bronze parts (copper) than

normal. If the sample was taken just after starting the engine, that might explain the fuel. Otherwise, fuel is something

to watch. Change this oil out since it's abrasive, and check back in around 12,000 miles to monitor.



Any words on the injectors from f1?

 

[steved]

Flux Is are a good choice...

 

[gathomas]

I would consider using Amsoil 5w 40 (DEO)

or if you really want to play it safe, for the short term, while you figure out the excess fuel problem, use 15w40.

 

[AH64ID]

I would pull your injectors and have them tested, sounds like one or more are failing.

 

[TSPowell]

I may have figured out some of my problems. I recently sent back my TST for the updated programs (econ, stnd, twins) and had the rail pressure option added. When you are in "Standard" mode, the rail pressure can be adjusted from 0-9 level (9 being the highest). The same is true for "Economy" but 9 is actually -9 and cuts rail pressure in half. I was driving around and thought I was in "Economy" mode but was actually still in "Standard" mode and set the rail pressure to level 9 thinking it would cut pressure in half and drove for about 60 miles not knowing I was actually on the highest rail pressure level. This may have damaged my injectors running that high of pressure. Im not to happy about this... . beware if you have these options on your TST, it might have just cost my a whole lotta money. Anyother damage I should be aware of from the high rail pressure?

 

[AH64ID]

As long as you caught it early you should be fine.

Why would you cut rail pressure in half for economy? Just about every mileage kit out there is a pressure box.

 

[TSPowell]

I was just seeing how it felt, kinda thought it might limit kinda like a valet switch

 

[AH64ID]

Gotcha, that makes sense.

Hopefully its just one injector with an issue, but I wouldn't drive it until they can be tested.

 

[TSPowell]

where is a good place to get them tested?, or are you just talking about sending them in to F1 for a rebuild and test?

 

[TCDiesel]

what I fine interesting is how companies claim they have the ability to test CR injectors,Sure you can measure the volume and the return rates ,But How would you measure the Pre/Post evens without some type of explosion then measuring the heat and pressure and correcting timing. Rumor has it NO one in the US (except Bosch) has this type of equipment. Bosch is Now allowing Certified testing with Bosch equipment but it won't be available until early 2011 at 250K plus setup, Why waste Time and money chasing the unknown B/C someone or (Company) claims it.



Why am I so out spoken B/C I sent ( 1 set off injectors 3 good and 3 bad) to more then 1 company claiming they could test them... all returned incorrect results. You are much better off trying to narrow it down when still installed



Quote: some good info... one thought though, based on what u just said about nobody being able to test injectors correctly, how did u kno that u had 3 bad and 3 good injectors? did u get em tested at a bosch place?



Answer:I molested 3 and other 3 were good All form a perfectly running engine.



3. 5% 1 time test would alarm Me,But I would test again In 5K,if it shows up high, I would investigate into Why.

 

[BrianJ]

what I fine interesting is how companies claim they have the ability to test CR injectors,Sure you can measure the volume and the return rates ,But How would you measure the Pre/Post evens without some type of explosion then measuring the heat and pressure and correcting timing. Rumor has it NO one in the US (except Bosch) has this type of equipment. Bosch is Now allowing Certified testing with Bosch equipment but it won't be available until early 2011 at 250K plus setup, Why waste Time and money chasing the unknown B/C someone or (Company) claims it.



Why am I so out spoken B/C I sent ( 1 set off injectors 3 good and 3 bad) to more then 1 company claiming they could test them... all returned incorrect results. You are much better off trying to narrow it down when still installed



Quote: some good info... one thought though, based on what u just said about nobody being able to test injectors correctly, how did u kno that u had 3 bad and 3 good injectors? did u get em tested at a bosch place?



Answer:I molested 3 and other 3 were good All form a perfectly running engine.



3. 5% 1 time test would alarm Me,But I would test again In 5K,if it shows up high, I would investigate into Why.

After speaking with the diesel tech at my dealer I have to agree with your post. As I am typing this my truck is in the shop for what they feel most likely is one or more bad injectors. I asked them about bench testing the injectors and they said there are only a few locations in the states for that, and the nearest one is in Utah. He also mentioned the equipment is over 100k. It seems to me the testing they are able to do installed (shutting down cylinders and testing flow/return rates) is sufficient to diagnose most injector issues.



There are a couple local diesel performance shops that claim to be able to "bench test" the CR injectors, but I have always been skeptical of what they are actually "testing". Seems like their testing would only tell part of the story.

 

[raxley]

I wonder if the 'nearest' injector facility that was referred to is Industrial Injection in Utah?
They charge $125 for testing, and they have good service, I just got done using them.
Richard

 

[Joseph Donnelly]

Dynomite Diesel has the $100,000+ Bosch test stand and they use it regularly. I like their Stage 1s based on new Bosch injectors, a good buy and every one is tested before sending them out. I expect you have one or more bad injectors. It could be cracked bodies, sticking pintles, etc.

 

[TSPowell]

Just got a set of Industiral Injection Drangon Flow injectors, also replaceing the rail PRV and the COV. Cant wait to see the results.

 

[TSPowell]

Just got the new injectors in, and have about 250 miles on them. I VERY happy with the power. Im a little disappointed that its not as quiet as I hoped. A couple things do concern me. The engine rattles pretty good if my TST is in Economy mode, but quiets up in Standard mode. It NEVER did this with the original injectors, so whats the difference. There is still one "ticking" sound that Im just not sure is right. Also, the truck surges now with the cruise on and going up hill, never did this before. The exhaust sound seems smoother. Im also trying to get an accurate measurement of my oil level. I changed it when I put the new injectors in and it seems to have gone up a little. I might pull another oil sample and see. I know its a little early to speculate, but my milage seems to have gone down also. I also replace the fuel rail PRV and the CP3 cascade overflow valve. My rail pressure now seem more stable.

 

[AH64ID]

Economy mode probably advances the timing, and larger injectors advance timing so your probably hearing timing rattle.

 

[TSPowell]

How do the injectors themselves advance the timing? They are 60Hp over stock.

 

[AH64ID]

The fuel gets to the cylinder sooner, thus it can ignite sooner. Its why some tuners have aftermarket injector timing, so retard it a little. Also with quality injectors the injector holes are smoother than stock so you get better atomization, which also leads to a quicker ignition.



60hp? According to II they are 90hp.

 

[TCDiesel]

Just to clear things up,The OP purchase Genuine (New) Bosch from T&C, We Buy at 100s of Genuine Bosch Injectors Monthly Thru II,Also the Myth about the NEW Bosch body being SS is incorrect. By common Material the Bodies are NOT SS. Bosch is tightening up their Seller Network trying to end the the R/R that is so rampant today. Rumor also has it that a 13% increase is in the Near future.

 

[CToney]

Higher flow = more fuel sooner thus advanced timing. Higher rail pressure does the same. Better atomization and advancing timing leads to better fuel economy, up to a point. I had fuel in oil injectors were removed checked and reinstalled and no more fuel in oil.