Only the most recently produced ones are still within factory warranty...so you can pretty much use whatever you want.
I typically use Mobil 1 Euro 0w40 but recently switched to Driven HP-X Euro 0w40 - all metals went down at the first interval except for aluminum but we're talking a very minute increase. Car ran 2 events, drove over 4000 miles to/from/during those and ran 16 passes or so on that OCI. So likely just from the absolute ass beating it took.
What I can say is the OEM 899 filter is spectacular. Insolubles were at a TR amount. I then switched to Fram Titanium because I got 8 filters for 3 bucks a piece on closeout. That increased to 0.2 - Once those are gone I will be going back to OEM.
