I'm a little late.... but I would have suggested using any of these;
Motul 8100 E-tech 0W-40
Mobil 1 0W-40
AMSOIL European Formula 5W-40
etc,...
They all carry VW503.01 and are well suited for use in the W8, based on manufacturer recommendations. Pentosin, Lubro Moly,.. didn't seem to be up to approvals/specs when I looked into them a while back, but still both good oils.
And if the VW505.01 approval is correct for the W8, then Motul "Specific 505.01" 5W-40 is another one.
BTW, what VW is this W8 in? Is it a TDI?
Also, 10K mile OCI's should be a breeze for the W8. I've been doing extended drains (8-12K) in my VW/Audi 1.8t's for 8 years and no issues. And I don't know how big the oil capacity for the W8 is, but I have a feeling the sump is huge like with my Dad's Porsche CayenneS NA V8, with which he recently went 19K miles with Mobil 1 0W-40 and the used oil analysis was very good. He's now using Motul E-Tech 0W-40.
Motul 8100 E-tech 0W-40
Mobil 1 0W-40
AMSOIL European Formula 5W-40
etc,...
They all carry VW503.01 and are well suited for use in the W8, based on manufacturer recommendations. Pentosin, Lubro Moly,.. didn't seem to be up to approvals/specs when I looked into them a while back, but still both good oils.
And if the VW505.01 approval is correct for the W8, then Motul "Specific 505.01" 5W-40 is another one.
BTW, what VW is this W8 in? Is it a TDI?
Also, 10K mile OCI's should be a breeze for the W8. I've been doing extended drains (8-12K) in my VW/Audi 1.8t's for 8 years and no issues. And I don't know how big the oil capacity for the W8 is, but I have a feeling the sump is huge like with my Dad's Porsche CayenneS NA V8, with which he recently went 19K miles with Mobil 1 0W-40 and the used oil analysis was very good. He's now using Motul E-Tech 0W-40.