What is the correct oil for my S4?

[jbee3]

Hi there I've been on the oil finder CASTROL's site and get two results for my 2009 S4 Avant. One says 5W-40 the other 5W-30?!

Does anyone know why there are shown two different oils for the same car? What oil should i put in my S4?

Best

Justin

 

[helal786]

5W40 is the correct one but 5W30 is acceptable conforming to VW502.