Thanks for the attachments, this is good information.

Essentially, using one example from the attached chart, what BMW appears to be saying is that if you have changed your oil at least twice in 48 months and/or in 60,000 miles, then they are happy to CPO the vehicle without inspecting the engine internals. If you have only done one oil change in that time and mileage, they want to remove the valve cover and see if there is any visible degradation before including that same example vehicle in the CPO warranty program.

That seems to me to be a very strong endorsement by BMW of the recommended two year/15,000 mile oil change intervals, at least for vehicles not operating in extreme service conditions.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue