Been watching some videos on this and noticed all the trucks were using 5-20 oil.I just backed out of the 5.0 and switched to the 3.5 Eco for my order.
Too many issues with the 2018-2020 5.0's with oil consumption that seem to have not been fully remedied, and now they adding another technology that has hampered other manufacturers V8 reliability.
Not suggesting you do the same, but seriously look into both Ford's issues, as well as other engine deactivation issues and decide what is best for you.
I'm wondering if the Mustang is having the same issues.
At any rate, it appears that the super thin oil is getting sucked into the plenum via PCV.
5-40 is recommended for supercharged versions, so I'm guessing this is a suitable alternative for the pickups.
Also noticed that on the 2021 trucks, recommended oil has changed to 5-30 instead of 5-20.
(Still seems thin to me living in So.Tex where I don't need to have a thin oil, even in the winter.)