2015 merc 250 pro xs
2B115737
I changed the LU gear lube a couple days ago and as it dripped from the lower drain hole into the pan, I can see some golden silvery dust flowing down (seen in pictures, but more brighter color in person than in picture). It consistently drained like that til almost empty. I didnt see too much of the milky residue however. Should I be concerned? TIA!!