Bought my 06 2500 4x2 CTD first of the year.Was not pleased with the mpg,two week ago with 11k miles made a 725 mile trip to Memphis (trailer empty going,loaded on return)as per advice here drove it like I stoled it.Broke that baby in,now with the "Drew Brew" she is doing 15.4 city driving and get this,an amazing 21.6 on the road without the trailer. Caution----to achive this you need to hang around 2000 rpms.

One more caution,Elvis is not at Burger king,try looking at Corkeys BBQ.

 

right on... glad to hear you busted thru the low teens...