A calibration table from your refills

For a vehicle with no calibration table, the app asks how many litres went in at each refill and builds the table from your answers.

How to

After a refill, the app asks "Refill on CG 04 MB 4821: how many litres went in?" as a banner when it opens, on the vehicle's card, in Alerts under Fuel, and as "? litres" on the refill's mark on the fuel chart.
The vehicle's owner and his team are asked, and BPN and the dealer may answer too. A driver is never asked.
Tap Answer, say whether the tank was full after the refill, then pick 50, 100, 200 or Other… for the litres. If you are not sure, tap I don't know.
The first answer with a full tank starts the table: from then the litres show for that vehicle. The tank size is asked once if it is not known.
Each later answer adds to the table. An answer that does not fit the readings is kept out, and an answer can be changed within a day.
In Configure the table carries the tag "Auto-built from refills · building", then "Auto-built from refills" when it is ready and the asking stops. Change any row by hand and it becomes your own table.