I bought a Civic EX last summer, but drive only 300 to 400 miles per month. I currently have only 3600 miles on it. The vast majority of my driving is city driving, and the city is San Francisco, which means lots of hills. Even so, my gas mileage (on those rare occasions when I fill the tank) is only about 20-22 mpg. That seems low to me, even for San Francisco driving. Also, this is the first car I've had in over 30 years with automatic transmission (what does one do with the left foot?). Unlike rental cars I've driven with automatic transmissions, the car more or less automatically goes into D3 rather than D when I shift from park or reverse. Is this normal? The dealer says it is, but maybe this is causing the poor gas mileage.