My 330i M Sport is using a lot of oil, my local BMW garage says it's within tolerance but I know it's at least pretty close if not outside but can't prove it. BMW's tolerance for oil use is one seventh of a litre in every 1000 Km. (620 miles)
Their suggestion was to ensure the level was always at maximum and it's true that if I check the oil at least weekly and top up to Max it doesn't use so much. However let it drop, not do a weekly oil check, go on a long journey over a few days and it drops quickly. I'm wondering if the oil is overheating, but hasn't that engine got an oil cooler? Anyone else suffering the same problem?
Weekly oil checks & topups! Not done those since the Mark 3 Cortina and never in any of our BMWs before.