I know this is said and said and said over and over, but... every couple of weeks a new Titan owner posts something about MPG.
If you want good gas mileage get a smart car. Heheh... Seriously. Titan is a big boy, it pulls big toys, and it goes fast. Lots of power and torque. You either get all that, or you get good fuel economy and none of that. This is the reality of the internal combustion engine.
And when you spend north of 40k $$$ on a truck, and close to $1500 a year insuring it - the difference of 5 mpg won't add up to a thing in the big picture (even at 2x todays gas prices) - so arguing whether the Tundra, or Silverado, or whatever gets an extra mpg here or there is academic and missing the point completely. No one gets a full size truck expecting to get good gas mileage. It would be nice, but that technology hasn't been invented yet. Maybe in a few years the clean diesels will ramp up and get us an extra 5 mpg, but that won't add up to more then $100 a month in fuel savings... barely a dinner out.
And Ford Rangers don't pull 9500 lb trailers. They also suck wind when you step on the gas. Titan is a Titan baby. Hence the name.
Enjoy the awesome Titan truck. It does what it does better then any of them. Nissan was nice enough to give us a nice big fuel tank... and that makes all the difference