first tank i got 34.44 mpg,3nd tank got 35.55,5th tank got 37.22mpg.these are real world mpg in the flatlands of chicagos midwest.5th tank was a little more highway since i had to go 30 miles one way all week,otherwise i drive 11.7 miles from home to work.first 2miles are to get to expressway,then maybe do 30-45mph for3miles with braking,then traffic lets loose the rest of the way to my exit [about 4-5 miles],then back to city driving the remainer of miles,going home is slightly worse with stop and creep getting on expressway with remainer of trip about the same.ive still not driven longer highway millage yet to determine real highway mpg.this is REAL life results described the best i can.