My brother just bought a 2017 F-150 4x4 3.5 ecoboost with tow pkg. & 10 spd. I know the engine has been reworked & now employs 2 injectors (one port & one direct) for each cylinder. I don't know much about the other changes. Has the sump capacity increased? Anyway he's wondering about the better oil choices for this vehicle. If he wants to use an oil that's passed LSPI testing would he be best off going with a Dexos 1 gen 2 oil ? P.S. He will be towing a trailer approx 8500 lbs Thanks.