From my car racing days I have a membership that gives a decent discount, but the biggest advantage is that you know it's a company that has stock of the correct oil.
This is also certified Ford Specification, ie if you're car is under warranty and you dont ever want to get into arguments about what caused engine damage
Whippled, so Millers Nano-thingy.
I was " advised " to use 5w40.
Although IIRC Whipple state 5w50.
I let the dealer fit the standard U.K. filter.
I've read there may be a larger filter, but as is so often the case with these U.S. designed cars, the larger filter doesn't seem to have made it to the U.K.
In my experience, internet oil discussions can get deep into the weeds.
I choose not to skimp on the price of oil.
But is the oil system in the gen3 Coyote capable of going from a w20 to a w50?
I've no idea.