Dash Cluster Restoration

Get yourself a nice buffing wheel for your bench grinder, and after sanding out your scratches with fine wet-paper, buff the lenses with red or green rouge compound (the compound comes in sticks or blocks).........light pressure, and slow steady polishing will restore them........you can also get a finer compound to finish them (usually a white stick)...........

Trying to hand polish is gonna disappoint, and give you tennis elbow.