That's what I get with my 2019 Classic 5.7L 3.92 rear. Mixed HW/around town, my EVIC (yea...I know...), currently says 21.6MPG ave. (and that's with towing a 3500lb TT once or twice month). I always set my cruise control at 60MPH, accelerate slowly, coast to red lights, etc.. My average when I...