I wouldn't want it as a diesel personally. I also didn't buy this for fuel economy. If that were the case, I would have got the F-150 EcoBoost, but after driving 5 of them, I just didn't like it. That, and I wasn't a big fan of the interior on the F-150 either. I was trying to like them, and was "ok" with getting one, but I drove a Tundra again, and then went and drove another F-150 that afternoon, and that pretty much sealed the deal on getting the Tundra.