Just had mine changed at a dealer, 1500 miles, believe the Castrol Edge 0-40 is the official oil to use.
Magnetic Grey with all the best bits
FPM375/COBB/MSD- Quaife LSD, DSC+Tractive Suspension, HJS200 cell sports cat and MT Cooler. Sync3 upgrade.
Was UK seller for DSC & Tractive Active suspension !!!