I'm in the market for a truck, and have been focusing on 2018-2020 F-150's, 4x4, crew cab etc.. I really don't have a preference one way or the other between the 5.0 or the 3.5 and feel power wise either one will be sufficient as this truck will tow a boat at some point in its life. My bigger question is on reliability. Anything I need to look out for? I'm trying to find something with under 50k miles so theoretically if there were issues they should have shown up by then. Again anything to avoid or look out for would be greatly appreciated.