Nothing like what you are saying.
Anything VW 504.00/507.00 spec will keep your engine happy & your warranty intact. I haven't seen any that aren't 5w-30.
The readily available brands are Shell Helix Ultra EXTRA; LiquiMoley TopTech 4200; Penrite Enviro 5w-30. I don't think Castrol do a retail 504/507 but it is available in their workshop only Professional range. Just look for VW504.00/507.00 on the label.
There are a million threads on the correct oil & what is available - suggest you give that search bar a caning.
10w-60 - never have I seen any recomendation for that in any VWs post 2005. Maybe in one of the old dungers.
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