cj8rockcrawler
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So if I've had the grid heater nut failure, does that mean the Diesel gods will protect me from the lifter failure?
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Lifter Failure? Report it here!
- Thread starter mbarber84
- Start date
Dirtstiff
Active Member
IMO,
My 2024 is much quieter at cold start and running temp with 10w-30 than 5w-40.
I've tried 5w-40 twice in a year(winter) and the start up noise is significantly less on 10w-30.
We only get down to 0.
My 6.7 seems to like 10w30 best.
Using Rotella and Valvoline, both weights.
JMO
My 2024 is much quieter at cold start and running temp with 10w-30 than 5w-40.
I've tried 5w-40 twice in a year(winter) and the start up noise is significantly less on 10w-30.
We only get down to 0.
My 6.7 seems to like 10w30 best.
Using Rotella and Valvoline, both weights.
JMO
Trash Panda
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If you have luck like I do, it means you better just plan to do the Hamilton swap tomorrow.
OLEJOE
Well-Known Member
Sounds like my luck.
ErikTheRed
Well-Known Member
FWIW, I ran all this lifter failure kerfuffle through ChatGPT, and after some back and forth and figuring of data and crunching of numbers, she concluded that approx 1-2% of all Cummins 6.7's from 2019 thru 2024 will suffer a lifter failure at some point in the engines life. If that 1 to 2% is accurate, I can live with those odds. (even though Im just the poor schlub who will have that one truck in 100.... if I didn't have bad luck Id have no luck at all.)
The Motorcraft 10W30 oil for Powerstroke engines is dirt cheap off the shelf at Walmart and carries the appropriate Cummins certification. I will likely use that oil once I get to 100k miles. Until 100k miles I'm going to let a dealer do the engine oil so I can have a paper trail they are happy with and encourage them to take care of me if I need a warranty repair later.