had penta in a 2013 bighorn 2WD crew. great gas milage as long as I kept it under 65ish on the HWY. The minute you pushed past 70, you can see the MPG drop out the sky. Today I have a 17 longhorn 4x4 (only 2K miles, so too new to report MPGs).
I'll tell you, that Hemi is awesome! The 6 will...