M1 site told me this:

Year: 1994
Make: BMW
Model: 530i
Engine Type: 8cyl. 3.0Liter


Mobil 1 0W-40
A fully synthetic motor oil, Mobil 1 0W-40 with SuperSyn Technology exceeds industry standards and the major leading builder requirements, enabling the product to keep performing well after conventional oils cannot. Mobil 1 is recommended by leading car manufacturers as initial fill.