The Toyota 4Runner's gas mileage doesn't fare too badly, for what could be a truly inefficient SUV.
The EPA has downgraded the 4Runner slightly, though, for the 2014 model year. Fuel economy is down to 17 miles per gallon city, 22 miles per gallon highway, a loss of 1 mpg on the highway cycle.
Keep in mind that those ratings hold true for the rear-wheel-drive edition; with four-wheel drive, the 4Runner's been rated at 17/21 mpg, another 1-mpg downer.
There are seven-passenger crossovers that match or exceed those numbers, though. The 4Runner's body-on-frame layout has some advantages off-road or when hauling heavy loads, but its added weight (compared to modern car-based crossovers) and boxier body altogether just aren't as good for gas mileage.