Lots of speculation on what will actually happen. I'll wait and see, and then develop my opinion and make my choice... to buy or not to buy a 2013. In fact, I won't buy a 2013... so it's "to buy or not to buy a 2014?" Right now, I'm so fed up with my 2010, that I'm trading it tomorrow on a 2005. I'm really going to miss the creature-comforts of my 2010 Laramie, how smooth it is, not a single rattle inside, or outside that I can hear. It's a real good-looking truck, too, and I get lots of compliments on it. I just CAN'T live with 13mpg (at best) empty anymore. It seems to regen WAY too often. I did a 200-mile (round trip) drive two weeks ago. I kept it at or below 70mph the whole time. I went to Lubbock and back. Had the same wind both ways, so a tail wind down, and the same wind (headwind this time) on the way back. On the way down, I got 15. 5 on the lie-o-meter, 13. 0 hand-calc. Got worse on the way back. My '04 Dually got at least 17-18. Looking forward to the '05.
BTW, I went to Lubbock to look at 1500's. I was going to trade mine in on a 1/2 ton. Then I saw some '12 Duallies, and looked at them. The dealer said it would get a little better mileage than mine. I didn't believe him. After what several of you '12 owners have said, I'm glad I didn't do it.
First thing to go is the cat if it's still there, and am going to have fun modding it. I miss doing that. Haven't done anything to my '10. Worried about warranty and the feds. So, I'll wait a year or two and see how the 13s and 14s actually do.
Oh, and my brother works for a co. that gives him a truck to drive. It's a 10 or 11 F250. He is loaded with 1,000-1,500 lbs all the time. He adds the DEF about every oil change (5,000 miles), and gets 16-18 mpg. He doesn't dog it, so he keeps it below 70. But still. I can't get 15 even if I keep it at 60 mph!
SOLER