Haha. I would like to think that by 2010 the 4.7 would have been a tried and true engine since it is about 10 years old. I haven't broken the 17mpg range on my Dak with 4.7... With that in mind, I went in and ordered myself a 2012 Power Wagon which gets just about the same mileage figures... And can fit my quad in the back!

 

From what I've heard the 4.7 is a better overall motor, has the same power as the 318 and is better on gas.