I, too, have only been able to get 36 mpg after 1500 miles. Drive a Passion, California gas, mostly city (flat roads) but some freeway (70mph and some hills), driven in manual mode almost exclusively (automatic mode is horrible). Usually shift b/w 3500-4000 rpm. I'm still playing around with foot off the pedal at the shift and not lifting the foot, slowing down on the freeway, shifting at a lower rpm, etc. based on info in the posts, but really would like to see 40 mpg or better. Any input?