I also use Amzoil in my 2015 F150 and the wife's 2015 Caddy.
It gets changed at 10,000 along with the filter.
It's dusty here sometimes and they get it earlier then.
In my 1963 C10 it gets changed when ever i feel like it because it does not get driven much these days.
2 days ago i changed it and it looks just like it had just been changed,my bud runs the parts store and he said the last time i bought that oil filter was 5 years ago.
He has always given me grief about the oil that gets used in it,i use DELLO 15-40 the same that goes in my Massy tractor.
Now i have put in Casterol high mileage oil so i will see how good it is.
