Which oil for breaking in 2024 F250 7.3?

Bigger & better cats, or less ZDDP? Less ZDDP, less detergents & dispersants, and anything that can interfere with the polarity of the anti-wear additives in the tribo-film. This is how we got to the "interesting" formulations of today, not because Phosphorus is bad for cats, as much as car manufacturer didn't want to implement higher quality cats. Just ask Lake Speed Jr., he actually said that:

 
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Bigger & better cats, or less ZDDP? Less ZDDP, less detergents & dispersants, and anything that can interfere with the polarity of the anti-wear additives in the tribo-film. This is how we got to the "interesting" formulations of today, not because Phosphorus is bad for cats, as much as car manufacturer didn't want to implement higher quality cats. Just ask Lake Speed Jr., he actually said that:
Higher quality cats? That's not possible, the catalyst surface is composed of the same noble metals, if phosphorus gets there and reacts it's not dependent on quality at this point. But it has to get there and it has to be in sufficient quantity to be irreversible poisoning during a drive cycle.
 
Edit: removed the 6.7 diesel and put in the 7.3 gas This is straight from your owners manual.

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High mileage means the oil contains chemicals that condition old seals. That’s not required for a new vehicle.

Extended performance means a motor oil with additives to push the length of the oil change interval. Not sure why someone would push the oil change interval on a brand new vehicle. Just my two cents.
 
High mileage means the oil contains chemicals that condition old seals. That’s not required for a new vehicle.

Extended performance means a motor oil with additives to push the length of the oil change interval. Not sure why someone would push the oil change interval on a brand new vehicle. Just my two cents.
the HM varients also normally have just a bit more additive package in them and will not hurt anything in a new engine. Valvoline does not advertise extended OCI intervals with their extended performance oils, just better protection.
 
the HM varients also normally have just a bit more additive package in them and will not hurt anything in a new engine. Valvoline does not advertise extended OCI intervals with their extended performance oils, just better protection.
I believe you are getting your terms mixed up. There is Valvoline Extended Protection and Mobil Extended Performance. Mobil Extended Performance suggested 25,000 OCI's. The OP was talking about " Extended Performance". Valvoline Extended Protection does not talk about longer OCI's. It's all just a bunch of advertising blather anyway. Not be be belligerent. Everyone has a favorite oil. :cool:
 
I believe you are getting your terms mixed up. There is Valvoline Extended Protection and Mobil Extended Performance. Mobil Extended Performance suggested 25,000 OCI's. The OP was talking about " Extended Performance". Valvoline Extended Protection does not talk about longer OCI's. It's all just a bunch of advertising blather anyway. Not be be belligerent. Everyone has a favorite oil. :cool:
Mobil’s verbiage is also to follow vehicles recommendations for OCI while under warranty. Still has nothing to do with your original claim that HM oil will have negative affects on a new motor.

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Higher quality cats? That's not possible, the catalyst surface is composed of the same noble metals, if phosphorus gets there and reacts it's not dependent on quality at this point. But it has to get there and it has to be in sufficient quantity to be irreversible poisoning during a drive cycle.
Then what is Lake Speed Jr. on about?
 
You can run a high mileage oil on a brand new car with no issues as many of us have done since it's invention.
 
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Then what is Lake Speed Jr. on about?
What he always does, 1) cross promote his partners 2) cross promote his 3 other channels and products.

He does have good information but you have to sift through his definition of "truth."
 
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