Kia Picanto Consumption

on Thursday I got my kia picanto eu new car (daily registration). since I found no reference to the sprites in the French operating instructions (I found everything else, all kinds of oil etc. but I found nothing to sprit) I just filled it with super fuel right after the purchase. thought to myself if he needs normal it can’t shahad and if he needs great I am on the safe side. meanwhile I found out in the internet that normally would have been enough. but now on the subject. I really filled it up, so a few liters after the tap gun has switched off and I have been driving since the approx. 380km. the tank clock is already under 1/4 full. I mainly drove the autobahn and that because of driving in also never faster than 135, mostly 110-120 and the air conditioning was not yet on. is the normal ? is the tank clock so inaccurate or is the consumption really so high because it has not yet been tested what do you have for a consumption? thank you already scum