To be fair, I don't really put much merit into what youtubers say. I do keep up with UOA in general though and MC is fine in the ones I've seen. But I keep up with people who spend way too much time worrying about UOA, and know that there's stuff that will provide better results than MC, while...
The reason I don't use MC is not because of price, and it's a fine oil, I don't think it's a great oil and it costs more than better oils. There was the post not long ago showing the valve deposits at 30k miles or somewhere around there and it looked pretty bad, and he uses nothing but...
The SAE ratings for motor oils include materials testing, the wet belt in these engines have to be made of materials that are included in SAE testing and are compatible with all SAE rated oils. None of the rated motor oils will cause the wet belt to wear out faster than motorcraft oil.
I know it's an old thread but just if anyone is wondering, I got a Raptor below invoice from Buster Miles Ford, in Alabama near the Georgia border. No negotiating, they haven't had a Raptor in since I bought mine that I've seen, but they do have other trims.