I have purchased the Audi and was wondering about this oil. I was at the dealer and they are using Castrol semi-Syntec 5W-30? I have been a pure synthetic user for years so needless to say they won't be putting that crap in my motor. I changed the oil myself to M1 0W-40 synthetic. It says it is the European oil. The TT seems to love it. It runs smoother than before and after 1000 miles in the motor it is still honey colored. Anyone else have opinions on this oil. I believe I will keep this oil for this vehicle.