Originally Posted by Centexguy
Not buying it until someone puts it on a dyno or makes some 1/4 mile passes. I've run premium and it felt the same and mileage didn't change.
They did it with the N/A 3.7 Mustang AND the 5.0.
Ford's timing tables from 2011+ vehicles on are EXTREMELY aggressive. The engine management will increase timing until it senses knock, and then pull back. Then keep on doing it until the most hp is achieved (along with other variables).
I see no reason why this isn't at least plausible if not true on the F150's as well.