Note when the weather changes and you get a flat!
Alunimimum rusts by corroding at the tire bead its sealing surface. Turns to white dust and ttire loses air and ultimately goes flat:(
My wifes car had this trouble one nite she drove on the flat anway and ruined the wheel , bad place to break down and pouring rain. couldnt get a matching one that day so bought a steel one, and busy didnt get around to replacing fancy wheel, broke at the time..........
anyhow within 6 months all other tires went flat, except steel wheel which never lost any air.
tire store showed me the white powder area said the wire brush and use sealer but it just reoccurs.
bought new tires and all steel wheels flat trouble ended. it was most noticeable at weather change time.
something anyone with fancy chrome wheels need to be aware of............