The 80TKm service incl. oil change for our Ford Transit L2H2, built in 2020, was made towards the end of October 2021. According to the service booklet is next service at 120K or in years, which follows first. Today is the km stand at 90Tkm. In the board computer under vehicles, maintenance, oil condition service stands in 20Tkm – i.e. at 110Tkm instead of the 120TKm. How is that possible?? No change in driving style. Half short distance, half long distance. With the yellow oil measuring rod only the 2 upper holes are free of Ö l. – But why do I suddenly have 10Tkm less until the next service interval? – Does the system measure the residual distance to the next service and the oil quality, or by the amount of oil? – How do I check minimum oil loss? Does anyone know this problem?