I live in notheast Ohio and deal with road grime,lots of brake dust,and
salt residue from the snow.Automatic carwashes don't fully clean these
wheels and the highpower  pressure wash (do-it-yourself) bays can and
will damage these wheels.I tried Eagle One A to Z wheel cleaner which
claims to be safe for all wheels.But,this product contains 2 types of
acid based ingredients which is a no-no for aluminum wheels with a
clearcoat.Why this reputable company would claim that this product is
safe for all wheels is beyond me.The calipers,discs,etc. are exposed
like most vehicles with 4wheel disc brakes and they too are exposed to
the same road grime and would probably rust quickly if not cleaned
regularly.When this product was sprayed on the wheels it stained the
calipers and now they look whitesh.The back wheel inner hubs? (looks
like it covers the rear  brakes) are spotted and I even saw a small rust
spot.I could not believe what I was seeing so I then took the Sorento to
the do-it-yourself power wash to try to rinse the wheels off again .I
was very careful to not hit the center caps so the pressure wouldn't
damage them .After drying the wheels off I then saw tiny chips around
the Kia center caps on all 4 wheels.Don't know if the A to Z wheel
cleaner ate away at the chrome edges around the center caps and the high
power water finished it off or if it was just the water that did it?4000
MI. AND 6 MONTHS OLD! Except for  this I love the Sorento.What cleans
these wheels in winter? HEEELLLPPP!!!!!!!!!!      2005 Silver Sorento LX
4x4 with sport pkg. and 5spd. Was perfect before this sh.t!!!!!!!!!