Well just this last fill up, my CC Hemi 4x4 w/3.55's on 33"ers got 16.8 on the EVIC, 15.3 hand calculated for city/hwy mix. And a recent trip of 100 miles at hwy speeds averaging 80-87mph gave me 17.8mpg. At 75mph, my average was showing 19.3mpg but headwind of 10-15mph was definite cause of that average. I normally average between 20-22mpg cruising at 72mph, flat terrain, slow to no wind against me. It goes to prove that not all lead foots are created equal and that all our Hemis can achieve good numbers when need be.