RE: Diesel or gas?
I drive a dodge dually with the cummins and love it. the only thing that would concern me is the amount of driving and towing that would be done. if youre doing alot of towing a big trailer than the diesel will be a good option, especially if youre gonna keep it for awhile.
a diesel here in canada is an 7grand option and that is alot of fuel savings to overcome. to further kick me in the twig 'n berries is the fact that diesel is more expensive than gas at the moment and has been for a few months...
diesels will last longer than the gas jobber (if maintained) but the maintenance is more expensive as well.