You're getting pretty good mileage. I can get 18 on the highway and average 15 and change in town. With my boat on the back if I really baby it I can see 14 but typically high 13's right now. When the truck was stock it did about 2 mpg highway and 1 mpg everywhere else. Lifted on 35's kinda put a damper on it but not by much.

I will say though with a chevy/gm you're giving up a lot of pulling power over Dodge/Toyota and finally Ford has caught up as well. Chevy have built a great small block but it has no tq at all which is the only thing that steered me away from them when I bought this truck. I came out of a gutless 5.4 ford after having a Duramax for a tow vehicle and although I didn't want to go back to another diesel, I didn't want another truck that groaned every time I hooked the boat up. Dodge and Toyota got their gas motors right and Dodge got the fuel mileage right. I'm happy with mine but if you're happy with how yours pulls, I'd keep it because you're not going to do a lot better on mileage with a newer one.

My mother in law is on her 2nd TDI Jetta. Great mileage for sure.

2011 4x4 toyota tacoma d-cab stock other than heavy 32" tires i get 17mpg on highway cruising 70-80mph and city plus highway i am usually 16 - 16.5mpg

Well you'd have to get over 48 and literally run the 14.5 gallon tank dry twice to do it. That being said, I love the trend of putting little diesels in these high-mpg cars. I just wish diesel didn't cost so much more than regular gas.

The new Altima gets ridiculous gas mileage too. Considering you take a 10-20 percent hit up front on fuel price with diesel and the Altima's 38 mpg highway rating, the effective cost per mile is about the same. Then when you consider the cheaper up-front price tag and ridiculous array of features for under $20k, it's really impressive to see what Nissan has been able to do with a 180-hp mid-size sedan. When Car & Driver tested it, it was the fastest, most fuel efficient and cheapest in it's class and among the best as far as amenities (tested against the Fusion, Malibu, Passat, Accord and Camry). Sorry, I'll stop bragging on it, but it really is an amazing value. Only reason I brought it up is because it could probably get close to the TDI's 700-miles-on-a-tank trick also (18 gallons at 38 mpg is 684 miles)

I had a ext. cab tacoma V-6 with a 5 speed, with 265's I would get 20mpg on the highway, when i put 32" mud terrains, dropped it down to 18.

I call B.S on anyone who says they get 20 in a full size truck with a V-8 and a 4x4

So here's what I have finally figured out, Boerne must be the most suck azz town to drive in/around because I get the worst mileage of anybody on any of the forums.

Or I'm one of the few honest ones???

We actually have 3 drivers and 4 cars due to my wife getting her Mercedes. I am looking to sell the Dodge and one of the VW diesels and replace them with a Tacoma, 5 speed manual with the 2.7 engine. Plenty enough to pull the boat and should get in the upper teens while doing it.

Call what you want but the newer Dodge 1/2 tons with a hemi will do it all day long if you can drive with sense. I did it quite a few times with just highway driving before I lost my mind and decided to lift mine. It wouldn't dream of doing it now but stock I did it quite a few times.