I don't think anyone will question that the 3.5L TT ECO is a far more complex engine than the 6.2L. The Raptor engine is the same base engine as that of the high revving Ford GT Supercar. With more moving parts operating at higher compression ratios, higher combustion temps, higher RPMs, etc each of us can reasonably expect to have more issues than a simple V8 that is normally aspirated. And some of us already are. The 3.5L is nearly half the displacement of the 6.2L and works it's ass off to put more HP and torque out than a 6.2L V8. I had a 2011 Ford F-150 LIMITED 4x4 that had the 6.2L engine in it. I loved that truck. It had 62,000 miles on it when I took it in and traded it for my new 17 Raptor. Over the course of 6 years, the 6.2L engine had no leaks, no issues. However, that transmission was a constant problem, shifted horribly from 2nd to 1st gear when taking off - banged into gear. Plus the truck was limited to 7,200 lb tow capacity (at least the Raptor is 8,000 lb) and the keyswitch in the column had to be replaced. I have had 12 Ford vehicles (including 3 that I own currently). The only two that ever went into the shop (not counting recalls) were the last two F-150s - those were the 2011 LIMITED and the 2017 Raptor. I think that it's a sign of the times that manufacturers simply don't build them as good as they used to along with making engines smaller and more complicated each year due to impending CAFE requirements. Did you know BMW does not produce a single gasoline or diesel powered vehicle that isn't turbocharged? I will say this though, I raced a 13-14 Ford Raptor (I couldn't tell the exact year) the other night and smoked him like he was standing still. Complain about the sound of the V6, but it flat smokes every other truck on the road. Every one! But plastic oil drain plugs....really???