Just got back from a Tennessee-Minnesota roundtrip.
2006 Honda Civic LX, MT, now with ~4500 miles on it. Almost all driving with A/C.Highest mpg: 42.09 -- Freeway + some town driving, avg 60mph.
Lowest: 37.37 -- Freeway, avg 70-75 mph. Ethanol "enhanced" gas. The next tankfull was without ethanol: 39.51mpg.
I'm very happy with this. The car is still pretty new; when does the mpg usually top out?
--Nan