There seems to be some error in calculating average consumption. This happens when there is a partial fill-up between o2 full tanks. The app calculated the average by dividing the total distance covered between the last two consecutive fills ( not the entire distance between partial fill and full fill) ups by dividing by total fuel consumed. This results in absymally low average figures.
Yes. I have the same "problem".
For example, one day I need to fill TWO times in the same pleace (paying with different payment form: cash and credit car). First full up was a partial with credit car, and the next was with 0 km on movement, a total fuel up..A disaster average