Just wondering if anyone has had luck with some of the new stuff. I love my all wheel drive 6.0 ltr ss. With todays prices and my high milage I am going to have to buy something soon. My buddy has a 10 silverado 5.3 and he gets maybe 2 mpg better than i. I love the hp and tor of the 6.0 and if everything else only gets 2 mpg better than I quess I will look for power. You would think something could get 15 towing.