I done oil change every 7000-10000km. in BMW service. I use redline racing 5w40 oil. And every time they put 9,5l oil. Im doing test every kind of way.
Electronic dipstic show full mark add 9,5l. If you put 9,8l dipstic show overfill. When dipstics drops 1 scale and we drain oils out engine oil is 8.0l. And when idrive shows add. 1l liter you had only 7,2l oil. if you add 1l dipstic show full mark. My car dipstic drops 1 scale about 7000km-8000km and every time i add 1l. (last interval is 8200km and dipstic show max. And BMW dealer drain out 8,3l)
in USA you drive low engine oli every time if use only 8,5l
And yes dipstic show max 8,5l but it shows max 9,5l overfilled 9,8l
Thats why many cars (M5 f10) in USA have this oil consuption problem. Oil pressure is to low since day 1 when first oil change is 1200ml and Europe 2000km.
Sorry my very bad english
