Hi guys,
Thought in this part of the forum to get more visibility.

I noticed my Arteon needs a little top up of oil. Assuming the oil was right on the line of the "full mark" when I bought the car, it's now about half way down to the "minimum" line after about 7000km. Totally expected being a new engine and all.

I know VW use Castrol oils from the factory, and I'm assuming to top it up with the same oil I'd be putting in Castrol Edge (which meets the VW 502 00 specification).

What I'm unsure about is what weight of oil I should be using? I see that the 5-30w and the 0-40w both meet the VW 502 00 spec.

I remember something about the weight of the oil used being relevant to the climate/driving conditions. I'm in Brisbane so...I assume 5-30w? Or should I be using the 0-40w?