Original post by: oliver ,
Have a 2013 Volvo 780 with an I shift 264 gears 465 hp motor 6 by 2 axles wide single drive getting 7.7 mpg pulling refer coast to coast. What I would change...DON'T get single drive with tag tire wear and poor ride eat up what little u save in fuel. I don't know what the engineers at Volvo did but they screwed the pooch with their 6 by 2 configuration. I have driven deuce and ahalfs that rode better than this pile. Just drove 2000 mile with their system broken and truck rode good they "fixed" it and its back to riding like crap.