I have no problem with oil customers, 4000 litres, but the Gui. 3800 litres of oil missing read 200 liters.Interfering with the main request to read the value of the work.Liter.
Customer I have had problems, but in the water it 4000 l machine Gui read 3800 liters of oil lack 200 liters.May I have the principle of work, reading.Liter.