Took the plunge - Cummins to Hemi 6.4
After reading posts, reviews, specs, watching videos, and a few test drives, I finally decided to take the plunge. I sold my 2003 Ram 2500 QC LB 4x4 Standard output 5.9 Cummins 5 speed and bought a ne...
Forum Discussion
kmbelt wrote:
I just got back from a 1500mi round trip to Florida with my 6.4 towing 9K. I ran premium fuel in one tank as i read it helps, but i didn't notice any difference and went back to 87 octane. I have the 3.73 gears and averaged around 8.1mpg. For my power, it is happies at 3500rpm climbing hills. Running at 65-70mph with cruise control on flat ground, it hums at 2500rpm.
Love the truck, fuel economy isn't the greatest, but that isn't what i got it for. I now have 5k on the odo, and expect the mileage to get better as it racks more up. I think the 4.10's would actually achieve better fuel economy while towing.
What MPGs are you seeing unloaded?
