Exactly. If you compare a 3.2 powered 2016 and 2017 Cherokee, the MPGs are exactly the same but the 2017 shows as more expensive for fuel because of the mid-grade. Doesn't matter if it's FWD or AWD, the difference is there. Why this wasn't communicated in the owner's manual, who knows? But it sure looks to be an oversight. One that might be a big deal in reality as far as emissions and gas mileage are concerned (legally vs. practically).