Today , 39 deg F in Naperville and Elk Grove. Wind E8. 33.3 miles , fcd = 59.3 x .943 = 55.9 MPG. The headwind hurt. Tank is not so bad , though. 553.7 miles , fcd = 65.0 x .943 = 61.3 MPG. I will fill up Friday morning. Going to the Honda dealer in West Chicago after work. I might buy a motorcycle.