I have some matte black wheels on my utility vehicle. I cleaned it up, put Mother's Spray Wax on all smooth painted and plastic surfaces and the wheels.
When I was washing it, I had a scare when the wheels look they had water spotted from the wash but the spots disappeared after it dried. The water seems to wet matte differently. I also also interested what to use on matte wheels.
John Deere provides no advice.
Here it is all shined up..