Thanks all for the info - I will look it up. All previous cars had to be cold engine and flat. Sounds like the 650 has to be running at least 5 min before measurement.
And of course, info about the oils in the user manual:
Approved oil types:
BMW High Performance SAE 5W-30
BMW Longlife-01 FE
Alternative oil types
If the approved oils not available, up to 1 quart of oil with the specification "API SM or superior grade" can be added.
Viscosity grades: 0W-40, 0W-30, 5W-40, 5W-30