The 5K oil change in the maintenance display is a misnomer according to my dealer. They would NOT do the oil & filter change at 5K. Mobil 1 Sythentic API Service designation with viscosity SN 0W-20 is one of the better sythentic oils, readily available at discounted stores such as Walmart. 0W-20 is the oil that Toyota/Honda generally uses for their engines. Mobil 1, API service designation SN is good for 10K miles or 12 months. If you are looking for long life oil, BMW recommends Mobil 1, Sythentic 0W-40 with European service designation LL04 which is far more stringent than API service designation SN; but their service interval is 25K or two years. Similar sythentic oils are available from MB/Audi. To counter the endemic problems of owners changing the oil prematurely, BMW has eliminated dip stick in ther engines since 2009; so the owners won't change oil just because it is brown. After 24 months/25K miles, the engine oil from my BMW came out as black and thick as tar. So I stopped following the BMW condition based service recommendations.
I don't see any issues to use any brand sythentic oil with viscosity 0W-20 provided it got API service designation SN or better in your CT if you change oil at around 5K miles intervals.
