I filled up with ethanol-free 91-octane gas on the way home from the dentist. The tank was nearly empty, so there was almost no ethanol in the mix. After a few miles, I noticed that my mpg were over 50, so I snapped a picture. I snapped another one about 19 miles later, when I got home.
The average fuel economy during that 19-mile stretch was 51 mpg, with only moderate hypermiling.
2016 Kia Soul.
1.6 naturally-aspirated engine.
Starting elevation: 1,562 feet ASL
Destination elevation: 1,507 feet ASL