Is common on a m112.
did it go away after warmed up, sounds alittle more aggressive than others from video.

Mine did it when i 1st got it, warmed up it went away, fresh oil change and went away, i have not changed mine, and i bought with 50k and i have 189k atm.

did you let it run, or shut it off when you heard the sound ?

And reccomend oil is 0w40, Mobil 1 synthetic is what I use, about $25 for 5 at jug at walmart.

What the sound, sounds like to me.

You can go to a autoparts store and get a mechanic's stethoscope and poke around where the noise is coming from, to help you pin point.