Ive had the f150 ecoboosts and the rangers as work trucks so im familiar with the platforms, i dont put much load on em ive had both with about 50 miles and ive gotten em serviced at the normal service intervals and damn. The oil that came out of the trans and the plugs,so now i have in mind...
As long as oil meets all certifications and filter as well they cannot void warranty. You can run synthetic at your mileage now yes after 500 miles its broken in so change oil and boost away.