ΔE 28.2, loose: different enough that you should pick on purpose. Mortarion Grime is a little lighter, warmer than Pine Hollow Shade.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 28). Mortarion Grime is a little lighter, warmer than Pine Hollow Shade.
The same difference applies the other way round: Pine Hollow Shade is a little darker, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Pine Hollow Shade on the colour wheel See Mortarion Grime on the colour wheel
All matches: Pine Hollow Shade equivalents · Mortarion Grime equivalents