Last time I filled up, I calculated my mileage for the tank at 31.1mpg - a huge step up from my usual 25-ish. I suppose it helps that I had a 3-day event downtown (about 30 miles away) and I slept at home both nights, so it was three round trips. And I live one mile from the freeway, and my parking spot was only another mile from the exit. So it was about 180 miles of freeway driving, then another 120 of I don’t know what. Usually I only get ~30 miles on the highway out of each tank.