this makes me want to send samples in on my 110k miles 6.7. or....ignorance is bliss?

 

With knowledge comes fear....

In all seriousness no reason not to, they are a useful tool if not over thought.

 

interesting, in both this instance and the the OP's the 5w40 sheared down to a 30wt. The wear rates for such a new engine (13k miles) are nothing to be concerned about but it is interesting to see the oil sheared down never the less. I haven't spent a ton of time looking at 6.7 UOA, the shear effect is much more prevalent in the high pressure HPOP system on the 6.0's. Nearly every 5w40 UOA I have seen on that application, the oil is a 30wt by the end of the OCI. I have never seen that cause any issues but it does show how less shear stable the 5w40's are. If you notice on the SAE J300 chart I posted 40 top weight oil is listed twice, 0w,5w and 10w-40's are allowed to have a lower shear threshold than monograde or 15w-25w-40's (3.5 vs 3.7) so they are prone to a bit more shear. Absent an increase in wear rates it is a moot point that most people over think. In the 6.0 applications, a 30 top weight oils tend to be not shear down grades like the 40wt, the pumpability of the lighter oil might just line up with the HPOP better. I ran T5 10w30 in my HEUI 7.3 for that reason as well, could be one of the reasons the 10w-30 is the factory fill of the 6.7 in addition to the fuel economy benefits. Sorry slight rabbit hole...

 

Definitely a similar report. Thanks for sharing

 

Probably going to see more iron in these newer Powerstrokes since they now have steel pistons.

 

You also have to remember that no two vehicles are the same. They are all driven differently, so no two oil use cases are the same either. On my truck, it's 99% highway driven, very little city miles on it, so my OCI can be extended, while if someone had MY truck and drove all city miles, then their OCI would be a lot more frequent. As a third situation, someone driving MY truck on the highway, but jack rabbit starts, flooring it a lot, driving way over the limit etc and using much more fuel than I do, could come out with a totally different analysis than mine and needing a shorter interval.

No one is "right" very few are "wrong" because every one is different.

 

I understand that. Was more curious as the different break-in regimes that people follow. I changed my 2021 at 4K and then followed the IOLM, which kicked off between 6-8k for me.

 

To prove something works over something else you would have to have several engines test them all under whatever conditions and open them up to inspect bearings, rings, cylinder walls, carbon buildup to see if any method actually does benefit more than any other. You would have to have several of each variable to account for differences between driving habits for each break-in procedure also. Anything else is just anecdotal.

 

Correct. The only people that would do that would be the manufacturers when they put engines through torture tests. They would be the only ones to actually know what would work best for their engines in my mind. Would you agree?

 

I agree they should do torture testing on their HD engines to find weaknesses or test the durability. In reality, it isnt in Ford's shareholder interests for them to make the Stanley Thermos of trucks. You can see from the forum there are a lot of people who are constantly buying the next model and own the previous. Those are Ford's favorite customers.

 

I'll throw this out there. I got a buddy who works for Union Pacific. They do 10k mile OCI's on their 6.7's and run em 300k miles with little issues.

 

No doubt. I trade often and they love it.

My biggest defense of Ford is their extended warrantys. Call Chrysler and see if they will warranty their vehicle for 8yrs/175,000. Most won’t touch 100k. Jeep doesn’t do anything over 50k, last I checked in 2010. That says something about their vehicle.

If my truck gets to 400-500k miles will never be seen by me. But if they all blew up at 60-100k miles, then my resale would be crap. I have sold with 45-122k miles and always get top dollar.

 

Ford will gladly sell you an extended warranty, but have you ever had to use it for anything major? There are lots of posts of Ford jerking customers around about warranty coverage, or customers waiting months for warranty repairs. Ford topped the industry in recalls and warranty work last year. Does that say something about the quality of their vehicles?

 

Why do you own a Ford then?

I have used all but 1 of my warranties. Some minor, some major. No new engines or anything like that. An AWD issue was the most expensive at $4k. Never been denied a repair, but I have never bought a 3rd party warranty which many do purchase. If I bought a $3k warranty and they wouldn’t fix it, I would sell the warranty, fix the car and buy another. Never even been hinted at. Find a better dealership.

The point is if you maintain your vehicle, Ford believes that it will last longer than other brands. I don’t know about what their national numbers are vs SOB. Sounds like talking points. I have owned a dozen Ford trucks and have been happy with all but one. I traded it, but it ran fine, just didn’t like it. I have a 2004 6.0 and a new 2023 currently.

 

Yes, talking points. That is why Ford started their “zero defects” initiative in 2023, starting with the super duty, because they were losing money hand over fist. For being such a Ford fan, I am surprised you missed that?

Why do I own a Ford? I have been asking myself that quite a bit as of late.