ToyotaJimD, I have a 97 Rav4 with factory wheels. They are not chrome. You suggest above they are either clear coated or painted aluminum alloy. I can't really tell. The owner's manual says they are alloy.
The problem is they have dark spots or pits/chips that are darken by road grim brake dust or corrosion. I tried a brush and the water soap combo I wash the body with. It removed some but there remains some stubborn areas. Will these cleaners clear up these dark spots or am I stuck with these? Since it's aluminum it can't be iron oxide but I figure aluminum can still take on some pretty stuff stains.
I've never messed with wheel cleaners and almost bought the Meguiars. I'm glad I didn't.
dbs00,
Virtually all mass-produced factory alloy wheels for the past 25 years or so would be considered a coated alloy -- coated with a either a clearcoat or wheel-spec color coat and/or clear as a final coat. They're all cared for the same way.
The exceptions to the above are:
- Hardened chrome -- through a traditional plating process of nickel, copper and chrome over the aluminum alloy;
- Chrome clad -- which is basically a plastic hubcap over the aluminum alloy, so treat it as a chrome plastic hubcap. You'll primarily find these on some larger late model Dodge and Ford pickups and SUVs;
- Metallight -- a chrome-look coating most commonly in a traditional chrome or black chrome, and you treat it like a coated alloy -- these are very new and are an eco-friendly alternative to the chrome look, and offered on high-end Acura and Lexus vehicles, and most visibly on Jay Leno's C6RS, but expect to see them more in the future.
But in short, your wheels would be factory alloys and whether silver or clear over the aluminum alloy, the finish you are cleaning is still the same wheel-spec coating.
I'd recommend Eagle One All Wheel & Tire and use an appropriate wheel brush to work the hardened, baked-on crud. Follow the directions. Rinse & repeat if necessary.
Keep in mind you've certainly still got a coating on your wheel, even after 11 years, so you want to treat it as such.
Once you get them clean and if they still look a little dingy or need some shine and protection, use a PowerBall Mini and some Mothers Plastic Polish (or Power Plastic -- very similar) and that works real nice on the special wheel coatings. Then maintain them by washing regularly (use a separate wash bucket and mitt with a strong concentration of car wash). Once dried, use a spray wax to help keep dust from sticking -- only use a harsh cleaner when you have to, and be sure to polish/wax after.