edyvw...so, a little late to this party...I own a few VW models...the latest is a 2025 Golf R. VW uses "Castrol 0w30." I cannot get any information about this oil, and I would prefer to know what they are using. I stopped performing my own oil changes last year - I'm old

...I bring them Mobil 1 Euro 5W30...which is a pain, but perhaps I should continue with this practice?
I will use this car on the track a hand full of times every summer, and it is stored in a heated garage December - April...if that matters?