I have an Audi RS4 beast, with a 4.2L aluminium block 420HP V8 with FSI direct injection,that has a redline of 8,250 RPM, and a max piston velocity of a F1 race engine. My driving style is always spirited, with most of the miles driven on the highway. Currently the car is through the nominal break-in period proscribed by Audi, and has 2000 miles on her, with the factory oil. I believe the factory oil is Castrol Syntec 5w40. I plan to perform UOA when I change out the factory oil and plan to replace it with Elf Excellium LDX 5w40. Because of Audi/VW warranty, I need to stay with 502 00 spec, 5W50 or 0W40 oil. Based on the many discussion threads I've read on BISTOG, Elf seems as good a place to start, when it comes to a good high quality oil for this engine. I'll also plan to do a VOA on the Elf and a UOA when it is first changed out. Audi recommends 5K miles as the first oil change, with the next service interval at 15K. I've always gone with 3-5K between changes, maximum, in the past with Mobil 1 0w40 in my old S4. So, given that I'm new at this oil monitoring game, what would y'all recommend and advise that I do from here on out?