[Chumly]

I have a '06 Chevy 3500 dually with the Duramax/Allison combination. I have used it for the last year and a half delivering RV's from the factory to dealers throughout the USA and Canada. I have put on 230,000+ miles and have had no problems at all. I bought an Edge controller and use the towing mode when I'm towing and the economy mode when not towing. Watching my driving habits has let me get this thing to get 14+ mpg towing a large fifth wheel camper and to get 22+ mpg running down the highway at 70 mph with no trailer. I switched the trans and differential to synthetic oil and with the braking feature of the Allison, the truck still has the original brakes on it. I looked at them when I changed from the aluminum wheels to the steel ones for the winter and the pads all look like new. The engine is quiet and starts in the cold very well.Last winter I ran to Grand Prairie, Alberta (about 250 miles northwest of Edmonton) and back on a pretty regular basis. The fuel mileage dropped off a lot but the truck never gave me a minutes trouble even at -50 degrees. A lot of the other guys I worked with had Dodges and they do a good job, the Cummins is a heck of a motor and the trucks are a lot better than they were a few years ago. I could outrun most of them and got better mileage than they did. My truck has the factory air cleaner and exhaust and all I do is boost it a little bit when I'm towing. The Duramax/Allison Chevy is my truck of choice, hands down.