Ford stopped offering the V10 engines as a main powerplant in 2012. Still available but only made it an option if you ordered it. Well back by popular demand, Ford to bring back the V10 as a main powerplant. Most popular was RV's and F450 & F550 platforms. Ive spoken with a number of v10 owners and they have no complaints. Only praises. Their were a few 3v owners that got the infamous variable valve timing hickup, but otherwise happy. With over 400lbft of torque(most likely around 3000rpm) from a smooth running, available anywhere gasoline, and cheap labor for repair, I can understand popularity. Diesels are far more potent. Unlike gas engines, diesels shake and stink. Not to mention most gas stations have only a few pumps for diesel. Cost for repairs are higher. And their is that whole weight difference. Diesels are like 100's pounds heavier. The weight reduction alone can mean more hauling or towing in a weight restricted class vehicle. Im rooting for the V10!