hi, i have a 2001 330 ci that is using oil and i am wondering how much i should expect. it has only 81000 kms on it. i have been only using the bmw recommened synthetic oil (casotrol 5w40) i drive it mostly in the city and it is good shape (tires, pressure etc.) i am not afraid to push the car from time to time with the occasional (read once a week) redline push. i do drive sportingly but at times also moderately. i changed oil at 72500 kms had to add a litre 5 months later then another litre 2 months later and now almost another one month after that. bmw tells me that is okay, but i dont believe them. i have checked the coolant and there is no sign of oil in the fluid so the head gasket is okay. any other people with this issue?????