1st tankful: 26.58 mpg 100% AC on.
2nd tankful: 29.81 mpg 100% AC on.
Both tanks about 80% city, 20% highway. 87 octane. Its the wife's car.
Unfortunately in the Houston/Harris County area we are EPA mandated to the use of reformulated gasoline; basically means less polluting and less mpg than "regular" gasoline. Same for you Annie being in the greater LA area.
http://www.epa.gov/otaq/rfg/whereyoulive.htm