The least expensive fuel of the entire trip was near Blaine, MN – it was 3.42 per gallon for regular. Konomi bought me that tank of fuel! Thanks!
The most expensive fuel of the entire trip had been the 4.12 I paid at the station near my house in Philadelphia, but it was beaten this last tank. This time it was 4.14 near Chicago – thanks to echassin for this tank!