My cars always got oil every year… No matter what the BC or the inspection magazine said. How does the Arona react, if I at ATU after 1 year only the oil change against new 0W20 crossover oil and that to the car not at all, say without Vcd’s entry into the electronic maintenance directory. So simply : Aktol away, new oil and filter on it, finished. (is this possible without Vcd’s intervention at all??) Theoretically, the car BC recognizes yes… “Oh I have new oil… Now I give it another 30,000k m…” Or how or what?… And : How do VW workshops react when they arrive after 30,000Km for inspection, but the first oil change has voluntarily done elsewhere after one year according to factory specifications (FOR the time indicated by the BC)?. Is there any experience?