Question about moly rings
The upper ring is moly coated.
The second ring is a cast iron ring.
All normal.
Edit: the shiny moly ring goes in the top groove. If it has a bevel on the inside, that bevel goes up.
The cast ring is for the second groove.
I install the expander of the oil ring first, then the top and bottom rails. Then I install the second ring and the the top ring.
Make sure and verify end gaps.