I'm sure it's been asked before and apologies in advance but what is the recommended oil to be used for a 2006 Cayenne running the 3.2 V6 engine. I know Mobil 1 is preferred but when you search a couple of different viscosities are highlighted, namely 0W-40 or 5W-30. Generally it seems to be 5W-30 but it would be good to get peoples thoughts. Thanks