Ford 6.7 with spun connecting rod bearing

FishOnOne wrote:

Grit dog wrote:

FishOnOne wrote:

Grit dog wrote:
So Flowerjokes are still finicky about oil? Nothing new.
U could run a Cummins on some goose grease and French fry oil and the only downside is getting hungry when you’re pulling grades and it smells like a fried turkey!
Lol

Run the wrong oil in a 19+ and you may have a cummapart. :E

NUMBER: 09-011-20 GROUP: 09 - Engine DATE: July 24, 2020 This bulletin is supplied as technical information only and is not an authorization for repair.
• 2019 model year, and newer vehicles, it is recommended to use 10W-30 engine oil such as Mopar, Shell Rotella and Shell Rimula that meets FCA Material Standard MS-10902, and the API CK-4 engine oil category is required. Products meeting Cummins CES 20081 may also be used. NOTE: Always refer to service information and/or owner’s manual for exact engine oil recommendations. CAUTION! 15W-40 grade oil CAN NOT be used in any 2019 model year or newer 6.7L equipped vehicles due to the new designed valve train of this engine. If this oil is used, it will cause deposits to form in the Hydraulic Valve Lash Adjusters leading to undesirable noise, and/or engine damage.

May want to pass on the Goose greese going forwards that may cause deposits in the valve lash adjusters. :W

So it has hydraulic lifters...big deal. Don't have experience with these newer engines, but some notice that was published 2 years ago hasn't made it into the owners manuals?
Diesel Supplement recommends 10-30 or 5-40 SYN. CK4 or Cummins CES20081 spec.
And says nothing with respect to NOT using the age old standard 15W40.
Synthetic is not even required or reccomended except for extreme low ambient temps, in fact it says change syn the same as dino oil.
And virtually every CK4 compatible oil is also CES 20081 as well.

It would take alot more ton convince me that 15W40 is in anyway harmful to those engines or has the propensity to stick or collapse a lifter.

(Like our old SRT that "required" 0W40 synthetic. And the new one for that fact. Old one had 150k on it when we sold it to the next owner and still ran perfectly, didn't use excessive oil, felt like it had all it's horseys still....after a steady diet of 100k miles of Delo and Valvoline blue 15-40 or whatever else was on super sale)

That said, even the latest Cummins still way less finicky on oil weight/quality/service life than any Flowerjoke since the early HEUI injection pumps through present day.

Put some 15W40 in a 19+ cummins and see how it sounds!