Good consumption of petrol

Hi guys, Since I mostly only drive long distances ( up to 400Km a day ), I pay particular attention to the fuel consumption. Since at the time of my car purchase was very short term no diesel to get was I decided for the petroler. Clearly the torque compared to the diesel is very modest, but with the consumption I can certainly keep up. I find a consumption of 6.8 to max 9.5L under full speed are very good for such a car. the 6.8L consumption according to BC maintain at constant 130 KM/h and a speed of slightly more than 3000. Since I do not really believe the BC in the car, however, I basically calculate. The actual consumption was also only 7,1 Litter. Greeting Thomas