Oil consumption

[maxime_vhw]

Hello

My m42 seems to be consuming oil.
I'm running full synth 5-40, it was serviced about 3months ago and its below minimum right now. (Already poured the full can in, 5l)
What are m42 main consumption causes.
I don't immediately see a big leak or anything. Coolant seems normal.

I'm concerned

[arrisbmw]

I,d chnage it and run on semi 10/40. what do the plugs look like
?