View Full Version : 2008 duramax milage.

lawn king
08-10-2008, 05:33 PM
12000 miles on my allison/duramax one ton. Getting 13 mpg working around town with an average payload of 1200 lbs, 17 mpg highway. The 6 speed shifts as smooth as silk, the engine is very quiet, interior very comfortable. Think twice about GM before you go ford or dodge!