Curious question... Does the oil look cleaner coming out of the BP filter?

 

Not at all. Still black as can be. I wonder if the 20+ MYs stay a little cleaner longer with them using less EGR??

 

Nah. Still gets black. The BP filter keeps it "clean" though and should test clean if you have analysis done.

 

https://www.drivingline.com/articles...d-performance/

 

I talked to one of the mechanics at my buddy's shop. He is a Ford tech also. I asked him about CP4.2 failures. He said that he himself has not seen a lot but the majority of them when they happen, are caused by owner error of adding gasoline or DEF where it shouldn't be. But this is a pic of a 17 I believe where water in the fuel split the pump. He said the owner had a WIF light and he kept on driving essentially ignoring it until it 86ed the HPFP. It sounds like this owner could have prevented this but just kept driving the truck. Just thought I'd post for FYI.


I guess fuel was everywhere.

 

I think I see the problem! I see lots of glitter paint in there too.

 

 

That's what I thought. You would think the oil would look cleaner since most PB filtration marketing claims they remove soot from the oil.

 

.
My cousin is a long time Ford diesel tech since '94 and at his shop they rarely see a pump fail for no reason. He also said he is not pressured by Ford motor company to void the warranty when no fuel contamination was found.

 

Yes they do for sure claim that... but here it shows that most of the soot is in the submicron size range...

From

https://www.researchgate.net/publica...iterature#pf13

Diesel exhaust particles (DEP) mainly consist of submicron fine particles which
includes a subgroup of a large number of ultrafine particles (<0.1 µm). the PM mass is often dominated by soot particles in
the accumulation mode with typical particle sizes of 50-300 nm, while the number
distribution is dominated by ultrafine (primary) particles below 50 nm [11, 44]. The
production of soot particles is enhanced during heavy load with fuel rich engine
conditions. Soot particles consist of fractal-like agglomerates of primary spherical
carbon particles (<20 nm) with more or less adsorbed organic compounds, as well as
small amounts of sulphate, nitrate, metals, and other trace elements. A fraction of
fuel and lube oil generally escape oxidation in the engine and exist as exhaust PM
consisting of volatile or soluble organic compounds. This soluble organic fraction
(SOF), which includes polycyclic aromatic compounds (PAH) containing oxygen,
nitrogen and sulphur [47], may range from 10 to 90% of the PM mass depending of
fuel, engine design and operation. During low load and idling conditions the
production of soot is low and the fraction of volatile unburned fuel and lube oil often
dominates the exhaust PM mass

The ultrafine particles within the nucleation mode mainly comprise volatile organic
material and sulphur compounds, either as solid particles or droplets up to 50 nm in
size. Since measurements in this mode are very sensitive to temperature, and
dilution repeatability in PM size measurements could be challenging. The sulphur
content in the fuel is of vital importance for the formation and emission of these
ultrafine particles. During combustion, most of the sulphur in the fuel is oxidized to
SO
2
but a small fraction is further oxidized to SO
3
. During cooling of the exhaust the
SO
3
can react further with water vapour that leads to formation of sulphuric acid that,
in supersaturated conditions during cooling, subsequently can form new nanometer-
sized particles very rich in number [11, 12] Accordingly, the sulphur content is of
great importance, and it was for example shown recently that low sulphur fuels (< 10
ppm S) did not generate such ultrafine sulphuric acid particles during medium and
high speed runs with a diesel passenger car [48]. The details of the dilution and
cooling processes of the exhaust determine the relative amounts of material that
adsorb or condense onto existing particles and nucleate to form new particles. A
schematic illustration of the condensation and nucleation processes during diesel
exhaust dilution and cooling, given by Sheer et al, 2005 [49], is shown in Figure 3




Just posting up for info to show the very small size of most soot particles. I'm not that smart. That's why I posted this up.

So while some may be filtered out, the sheer very small size of this stuff in the oil, makes it past the BP filter. But I'd have to make an uneducated guess that some gets filtered out with the rest of the insoluble stuff.



But I'm sure operator error is NOT covered.

 

Absolutely not... But he doesn't see the DEF contamination like he did years ago. Interesting thing is if a truck comes in because of DEF contamination, the pumps don't always automatically grenade and they have gotten by only flushing the fuel system out and driving it some or just change out the pump. Not sure how long the fuel system lasts after that type of repair.

 

This is my latest UOA. I was pretty pleased with it.

 

Looks good. I’d switch to synthetic and go 10k on next interval.

 

I've got a few different choices in my arsenal now. Oil is like ammo, I bought some extra to have on hand.

I'll let the group know what I go with and how the next UOA of Motorcraft 10w30 goes. It's still under warranty so I want to stay with the truck commanded OCIs.

 

And then there’s this:
Arod says no more than 5k miles 🤦🏻‍♂️
Ignoring the dash is one thing, but ignoring Blackstone analysis just seems ignorant.