I have the SR5 Premium, and it is part time 4wd. The Limited model is AWD. The Limited is optioned more for suburbia not hunting. The TRD version is 4wd and has locking differential.
Still impressed with MPG. I have 2800 miles, and hand calculated it is at 21.8 mpg. I keep track on fueley.com. Solid 55 mph may see 23 mpg, but over 60 it drops. I mistakenly put in premium gas at SAMS, and that was my best tank by almost 2mpg. I generally fill the same way, so I am pretty sure it liked higher octane better, but it is too expensive for the estimated return.
My 4.7L Tundra gets 16/17. Almost 22 in the 4runner is a big increase, about 1/3 more mpg than my truck. I can actually go over a week on fill ups.
