I have the same truck you have, and although the Hemi does fairly well without a load on it, when I pull my V-lite 30 footer, I get 7 to 8 mpg. highway mileage at best in flat Florida at 60/65 mph. I have 265/75/17's and 3:54 gear with the automatic overdrive trans. 45RFE. I was disappointed. 200 miles at best between fill ups. And yes, it does have the MDS system, as well. PS- I have an 04 Hemi Durango limited, no MDS, same trans. and rear and tires, and it gets 23 mpg hiway. Ram gets 20 mpg hiway (both no load.)
__________________
/SIGPIC]'08 V-lite Flagstaff 30WRLS
'06 Ram 1500 QC hemi Reese dual cam sway control,
K&N series 77 intake, Hellwig helper spgs. LT tires,
Flowmaster "true duals", 380 h.p., Bilstein shocks
|