RamMike7
Junior Member
I got to tow with my new 6.4 Hemi for the first time, now granted this is the first hemi i have owned since i have always purchased cummins power plants. Anyhow, my 1st trip with our 30' 9500lb. 5th wheel traveling here in Missouri with mostly flat with a few rolling hills and keeping my speed around 62 mph netted me a whopping 6.3 mpg! If we go out west with this thing im afraid to even guess how bad it might be. I expected the Hemi to not do as well as the cummins, but not quite this bad. As far as power, im actually impressed with the hemi's performance with the 8 speed, but 6mpg towing is a shocker to me, and my wife is giving me hell about it also. Could there be something wrong with the truck?