Hi, Could it be driving conditions or the way you are driving? I just started driving my new FFH and my trips have been anywhere from 4 - 6.5 L per 100K, or 58 - 36 mpg. I am averaging 5 - 5.5 (47 to 40 mpg). They warned me that it would take a while for me to start getting the best mileage. But my car only had 14 kilometres on it when I started driving it. My mileage over hilly and mountainous terrain this weekend was 5.6. But, it is mild, not hot, so I am not using a lot of AC. All I am doing is paying attention to my accelerations and decelerations and sticking to speed limits. I am really thrilled with the mileage I am getting. Presently have about 350 k on the car. Ron