Originally Posted by Ricohman

I just bought a new 2010 6.8. I drove a few 6.2's but all had 3.73's. My buddy ended up buying a 6.2 and I bought the 6.8 as I had a 6.8 previously.
My buddys gets 1 mpg better then me consistently. I have yet to tow anyhting with my truck so I can't compare that.
The 6.8 feels like it has more go from a standstill and when cruising. To tell you the truth I couldn't feel any difference in the transmissions even though the 6.2 has a completely different trans. The interiors are pretty much the same for comfort but my F350 is a bit stiffer than my buddys 6.2 F250.
The extra torque of the 6.8 is obvious and since it comes standard with 4.10's it is noticable. But if you want a flex fuel motor the 6.2 is your only choice. These trucks are so close in performance that the best deal may be the best truck.
Don't buy a 6.2 thinking you are going to get 20mpg though. These truck are heavy.