I think speed and predictive driving has a ton to do with the gas mileage in the T4R. Consider is how you come to stops. I usually let off the gas and roll to a stoplight, only applying the brake when I'm getting very close. This means you get off the gas earlier and you use momentum to carry yourself to the light. Once you start doing this, you'll notice that you really don't get to the light much, if any, later than the other cars that are on the gas up until the last minute. I even noticed, on my way through Ohio this weekend, that rolling to the light often meant that I still had some speed by the time the light changed from red to green. The car beside me stayed on the gas right up to the red light, came to a complete stop, and had to speed all the way back up to 55mph from 0mph. We passed under the light at exactly the same time because I was looking ahead and predicting what traffic was doing. Thankfully, WV isn't littered with county roads that have stoplights every 2 or 3 miles like southern OH. I guess these are just tips, in general, to getting good gas mileage, but a larger, heavier SUV is more sensitive to losing energy to braking as far as gas mileage is concerned than a sedan, for example. It takes a lot of energy to get the 4600lbs up to speed. Conserving energy is the best way to save fuel.
Also, I usually set the cruise at 72mph and I regularly get 22mpg on the interstate. The couple times I've been in a hurry and drove 78mph on the interstate, I did see a drop. I'm at 23.5~24mpg when I'm driving local highways (55mph). Haven't really done enough city driving to get an idea of what the mileage is there.
