I actually had to look up this info, in my Owner's Manual, for my E70 this weekend. Oil was at minimum level. It was very difficult to find the exact oil that BMW specified at my nearest Napa Parts store. But I guess some of you know EXACTLY what oil BMW specifies...

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2008 X5 4.8i | Wheels: Summer> style 336 20" RFT; Winter> style 214 Ferric Grey 20" RFT | Aero kit | ESS E-Flash tune | V1 | LCI Rear Tail Lights | Coding completed | Engine replaced at 90K