I know how you feel mate, I had my Paj serviced last week, (30k service) they managed to cross thread a cover bolt.
Makes me worried if they bothered to pre-fill the oil filter, never mind carefully checking the valve clearances....... I supplied the oil (Shell R4X and saved $130 on dealer oil, which I think is Castrol Magnatec Pro?)
I will do my own changes again from the next service: I don't want the worry of extended "dry" no pressure starts on any vehicle I own..they can adjust more $ off the "pre-fixed" price again. Most dealers will let you do it, just ask.