[M_a_t_t]

I agree with JRMichler about the city mileage. My best in town trip was 24.11 mpg, or 172% EPA for city. That night it was completely dead. There was never any cars in front of or behind me. I just had the opportunity to use all of my pulse and glide in the correct spots.

I only have one decent trip on record for my highway, it was also about 24 mpg, my only technique was constant throttle at 60mph. You might be looking at it wrong. Your city mileage is only 10% from your highway. Thats how I think about it anyway.