You'll know, because we'll check your ECU Strategy code against Ford's latest Strategy database before your information is forwarded off to 5-Star. Whether or not we'll require you to head to a dealer for a flash up to the latest Ford update will depend on far behind your truck is and what those intervening updates fixed or changed. The 5.0L F150s have seen far less TSB-related software updates than the EcoBoost trucks, which means the chances that you'll require one is fairly slim.