This is a 2013 Lariat with a 3.55 axle sitting on 18" 275/65Rs. Took 2 months to get it since I had to order. Turns out nowadays, its a bitch to get a non-fleet truck extended cab. Not getting a short-bed and not letting a +$40k truck sit on my driveway for a bunch of illegals to rummage through.
I'm at 15 mpg since I got it 1,300 miles ago. I live inner city Houston and 250 miles of that are towing an 18' center console probably all in at 2,000 lbs. I've seen it at as high as 21 mpg going down I-10 at 65mph with no trailer. My last two fishing trips I've gotten around 12mpg for the trip. City towing keeps it going around 8mpg, but once i get out I'll get 13-14mpg with a 20mph wind in my face and 15-16mpg on the way home. Waiting for the summer when we start running south to Port O'Connor and I'll have 100+ miles open hwy cruising to see what I can get.
Kicks the shite out of my '04 Silverado 1500 in all aspects, but I also paid 64% more for this bad boy. Great idle speed towing. Just shift to drive and it yanks that boat into motion. The Siruius outlaw country station kills any fm radio i've heard too.