Join Date: Oct 2009
Location: I live under constant surveillance :o
Re: 2004 6.0 SD dually MPG
Like Dave would say, read the stickies.
Air up tires, keep speed down and weight down.
a DRW is not meant for mileage but i can understand your frustration to want more mpg
Gearing would probably be your best step short of selling and getting a SRW.
read the posts and go through stickies and your questions will pretty much be answered for you.
"New" 05 no payment, all original 305k and runs like a champ