hi its a race grade oil Castrol Formula RS 10W-60 its not cheap you will require 13 litres for an oil and filter change, you need to drain the engine and dry sump system.
Not sure what the exchange rate is right now, but BMW is charging me approx $8.50US/quart for my 2008 M3.It's a very easy process, have changed the oil two times already, spoke to my AM mechanic who looked over my procedure and said all ok!
10.5 quarts of 10w-60 Castrol TWS BMW oil
Cost of oil was about $220 Cdn.
That's a good price. I had to pay closer to $15.00 per quart, we always get nailed up here.Not sure what the exchange rate is right now, but BMW is charging me approx $8.50US/quart for my 2008 M3.