My scooters get between 85 and 130 miles per gallon (the huge variance is due to different driving conditions). Short little hops around town in stop and go traffic is like 85, my commute to work was more like 100, and I got 130 MPG when I took it camping and did nothing but 5 mile or longer trips at a steady 40 with no stops to speak of.
I just filled up the Suburban today, it was $50 and it took forever because the gas pump was going SLOWWWW!
Also, I need to tune up my Metro, my city mileage has dropped to 35 in the past month, although I still get 45 MPG on longer trips.