[kwhizz]

Chuck.......I have a Non-Dually crew cab 2006 LBZ DuraMax/Allison completely "Stock"......I just came back from Towing my 24' enclosed trailer from Gettsyburg, Pa.....720 miles each way.......averaged 12.7 mpg running between 65 and 70 mph (When the truck was New I did the same trip and got 9.8....29,000 miles on it now)......GM did a heck of a job on this combo.....with the extended wheelbase, I didn't know that there was a trailer back there........No Comparison between Gas and Diesel......Done it both ways and the Diesel wins hands down..........

Ken