I am one of the diesel guys.  I have an obs powerstroke and I average between 17 and 21 mpg. Towing with a smaller rig is fine if your not dealing with 8% plus grades or have big rims and tires.

03' Tundra, smaller v8, yankin a heavy 20ft bass boat. I get 13-14mpg towing. I can feel the load going uphill. Don't like it but I just have to slow down and wave to the guys going 70.

WIGuide, I do look odd towing an 18.5 foot boat with my Subaru but we get there safely.

 

What is really funny is looking at the trucks and trailers when parked.

 

The go truck, truck, truck, truck, Subaru, truck, truck, truck........

Hey whatever works! You can always just say that you want to stand out! I don't see anything wrong with it at all. I just got a chuckle from the typo that turned your fuel consumption into a speed.

If all works out well in the near future, I'll be towing with a new Silverado 6.2 or a Colorado 3.6. Just have to really sit down and think about which I like better...

2014 Tundra Crewmax

13.5-14 mpg without boat

12-13 mpg with boat

2006 chevy silverado 5.3L V8 towing a 18 ft full windshield walleye boat I get about 14 MPG... it gets about 20 without the boat...

 

Mitch 

mine the same as mitch only difference is 2012

I have a 2010 Dakota and get 15 mg pulling my boat. The price of gas keeps her in the garage when I don't really need the truck. Had a diesel Liberty before that and it delivered  25 MPG towing, those are hard to find now. Not many were sold in the U.S.