i30 CRDi oil selection

I used to perform all my own services up till the last 7 years. (Since I never owned a car that was under warranty)

So when I got a new i30 I took it in last year for the 15,000 km service and was shocked at the cost. I'm just coming up to the 30,000 km service and the service guy's must be joking. AU$600 to AU$700. They tell me the oil is well over AU$100.

Is it?

I've done some homework, see below.