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My factory rims has these residue that I can't clean at all. It's like a residue stuck on my rims and i tried to clean it with a bunch of stuff but I wanted to know if there's a better way to get these off? I attached a picture...
 

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That is brake dust - it might be burned into the finish. You could get some really strong wheel cleaner like Meguire's Wheel Brightener. You can probably also remove some of it with a clay bar.
 

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Plate O' Shrimp
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Yeah, that stuff will actually pit the wheels if you don't clean it regularly and thoroughly. One of my key criteria when considering wheels is whether they are easy to clean. The wheels on my E39 were a b*tch. Those on my E61 are much better, and look nicer too.
 

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That is brake dust - it might be burned into the finish. You could get some really strong wheel cleaner like Meguire's Wheel Brightener. You can probably also remove some of it with a clay bar.
Do this OP.

Whatever you do DO NOT use a coarse cloth or so to clean that. You will scratch up the wheels.
 

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That brake dust is possibly embedded into the surface of the clear coat on the wheels. First try removing it with a all-in-one cleaner/polish that is chemical based (not abrasive). It could take some elbow grease. If that proves too difficult, you can go to a mild abrasive polish and get most off. Once you have it off, apply a very good wheel protectant/sealant (I happen to use Rejex but there are plenty of other good ones). Aside from routine washing, I clean the wheels once a year in the above manner and reapply several coats of the sealant. Since doing this, brake dust comes off easily with soapy water and soft brush.

The brake dust tends to be caustic and will eat into the wheel surfaces if left on there long enough. Regular cleaning is essential to prevent it.
 

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My factory rims has these residue that I can't clean at all. It's like a residue stuck on my rims and i tried to clean it with a bunch of stuff but I wanted to know if there's a better way to get these off? I attached a picture...
Check this product out, very impressive albeit a bit pricey.
Apply Sonax on dry rims then rinse off once the iron-oxide gets a chance to work on brake dust, it'll turn red blood. I believe Phil didn't even have to take out his pig-hair brush.

BTW, detailersdomain is sponsor of the forums, tell Phil Yiu, HPIA4v2 sends you :bigpimp:

http://www.detailersdomain.com/sonax-fulleffect-wheelcleaner.aspx
 

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Use "Super Clean".
This is the only thing that works. it's not expensive ~$7/gal. Put it in a spray bottle and use full strength. Make sure you use a dedicated sponge and do one wheel at a time rinsing very well.
Its great on the tires while you are there.

I spray the whole thing and wheels and tires come out great.
It's also great for other things around the house.

watch out. it is often too strong for some paints.
It does not harm the paint on the wheels.
 

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Use "Super Clean".
This is the only thing that works. it's not expensive ~$7/gal. Put it in a spray bottle and use full strength. Make sure you use a dedicated sponge and do one wheel at a time rinsing very well.
Its great on the tires while you are there.

I spray the whole thing and wheels and tires come out great.
It's also great for other things around the house.

watch out. it is often too strong for some paints.
It does not harm the paint on the wheels.
Your going to eat up the clear coat on the wheels with that.
 

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you are probably right however the other specialized wheel cleaners are probably worse and cost much more.
They all have a mild acid to remove the dirt.
I wash each wheel/tire fairly quickly and rinse well. From my experience I used this on all my cars and my Volvo
s80 was washed this way for 11years and kept outside all the time. It got a little rough looking after about 10 years. I bet if garaged it wouldnt look bad at all. Mkae sure that whatever you use, you must use a dedicated sponge. You dont want that cleaner/grit/dead rubber on the body. My sponge turned black!!

Keep in mind the NJ salt/sand/deicer, as well as brake dust does far more damage!!

On another subject. My wheel hubs are starting to rust and I will eventually paint them. They must use some pretty cheap paint there.
 

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Plate O' Shrimp
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I use dish soap and warm water. Specialty wheel cleaners don't do a meaningfully different job, IMHO, and you still need to get down there with a dedicated wash mitt and give them a scrub. If you do it every car wash (and you wash once a week or so) then the dust doesn't get a chance to build up to the point where it causes a problem.

I hate washing the wheels becuase it hurts my decrepit knees. That's why I like wheels with only a few big spokes and relatively big spaces between them that let you get access to the inside face. My E39 wheels were intricate little seines spun of pure frustration. Good riddance, says I.
 

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NOT the least bit crazy!!!

409/ fantastic/ simple green all work well. they are good all around cleaner detergents.
If you do not let it go too far, or if you frequently wash your car they are great and you have some around the house already.
I dont think you have to get into specialized products.

However the grandaddy is SuperClean!! Use this when others fail!!
 
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