If the car has a turbo and direct injection and you go by oil color, you barely get off the driveway before having to change it. Oil goes black in under 100 miles. Doesn't mean it stops lubricating, these cars specify oils that technically can do 30k+ miles in some cases and then have you changing the oil at ~15k miles. I still keep around 6-10k myself (10-15k km really, but I be using miles for your benefit here).

Of course, I don't use cheap or low quality oils. I keep to Motul most of the time.