Shaner did you ever find a truck? The only trucks I ever knew of that reliably got 25-30+ mpg were the old 80s (maybe they built into the 90s? I don't remember) Isuzu PUP p/u's with Isuzu's turbo diesel 4cyl. They were ugly and rode like crap but they were tough as nails (well the powertrain was, being a typical import the bodies would start to rust on a quiet, foggy night) and they were VERY efficient!

If you get your wallet out you can buy a New Dodge Ram 1500 Ecodiesel it's suppose to get over 20mpg. Or Wait for the Nissan Titan with a Cummins

I have a 97 s-10 that get 27 mpg highway. They are saying the new Fords will get 30 mpg.

Old. However, I just bought a 1999 GMC Sierra 1500 SLT xcab 4x2 w/ the 4.8L and 3.42 rear end. I got 24.4 highway. I'll take that any day of the week w/ a full size truck.

My 2011 F150 Super Crew 4x4 gets 18 or 19 on the highway. That is at 55 to 60 mph. Push it a little harder and its 15. Only way you are going to get 30 is downhill in neutral with a good tailwind.

I have an old S-10 that gets me around 28 miles per gallon that I use mainly for a beater truck to put the miles on when I need them. My old Ford F 350 1 ton gives me almost 12. But it can do a lot of work..

My old 2001 Silverado got 22-23 on the highway, with cruise on at a constant 70 mph. It was geared 3.13 rear end.My current 2013 Silverado got 17.7 on the highway, with cruise on at a constant 70 mph with the 3.42 rear end ,om my trip to Sask.. I have heard that the Ford Eco-boost doesn't get anywhere near the advertised 23 mpg on the highway and has mileage closer to Fords standard V8. That is exactly why I didn't get a Ford with Eco-boost which is a 3000 dollar option. The truck you seek does not exist......sorry.