Quote Originally Posted by jcthorne View Post
I weigh about 260, wife MUCH less than 200. Stock windshield and usually all the way up on the freeway. Bikes are always in tow mode, no trailer. normal shift if not in traffic is about 6k. Two lane roads unencumbered run about 70, Interstate or open freeway 75 to 80 in keeping with normal traffic flow. Tires are 17 and 26. I have the adjustable air deflectors, wife does not as they have very little effect.

As I said, both bikes get about the same milage when we ride together. Usually takes about 0.2 more fuel to fill mine than hers.
Your mileage; based upon what you've said... is about what can be expected for those conditions.
Think of these bikes as if they're big old barn doors... The faster you want to push them down the road; the more it costs.

One member; Texas, did a lot of experimenting with his bike, and he found ways to squeeze out the best possible mileage from it.
He's got a 2014; but the principles will still apply. Perhaps you should PM him...