'Baked-on' dirt on wheels

[cafcross]

Gave my car a wash tonight. 3 of my wheels came up spotless as usual, but the 4th (nearside front) has a lot of 'baked-on' dirt on it. I have snow foamed, washed with Zymol and then used various cleaners and mitts/brushes and have got the majority off, but there is still some. I have seen this before but only when wheels haven't been cleaned for a good few months. This has only been 2 weeks. Before washing the wheels were dirty as per usual with general road dirt, brake dust etc. Any ideas what could be causing it and what could get it off?

 

[Alan]

I'm not a fan of using Wonder wheels but in this situation it maybe worth a shot.

 

[Daniel]

Do you have a sticking caliper? Causing excess dust and heating up the wheel so much that it bonds to the paint??

 

[cafcross]

Not that I'm aware of. Will check tomorrow. It hasn't happened in every spoke though. Surely this would be the case due to the wheel moving all the time?

 

[ChrisP_182]

Do you have a sticking caliper? Causing excess dust and heating up the wheel so much that it bonds to the paint??

Worth a check as this is exactly what happened to mine

 

[LiamR172]

I'm not a fan of using Wonder wheels but in this situation it maybe worth a shot.

Wonder wheels is good, but its not that great for baked on dirt ime!

Have you tried some polish on it at all?

 

[cafcross]

Not yet. It was a very quick clean tonight - snow foam, wash, dry, quick detail - just to get all of the Sahara dust off. Will have a go with some polish at the weekend.

 

[LiamR172]

I was told by a detailer that if you get that yellow stains on the wheels then a rub with some polish usually takes it off. Obvioualy has to be an abbrassive polish.

Ive personally never tried it but it might work

 

[cafcross]

I was told by a detailer that if you get that yellow stains on the wheels then a rub with some polish usually takes it off. Obvioualy has to be an abbrassive polish.

Ive personally never tried it but it might work

Quick rub with some SRP and it's off! Cheers for the advice!

 

[LiamR172]

 

[JD]

Just to clear up some incorrect assumptions in this thread...

If it's bake on brake dust, it is Iron contamination. Therefore, you need an Iron remover (IronX, WWHW, IronOut etc). If it is staining from another contaminant, you need a remover for that, so TarX/Tardis for tar, clay for other types of fallout and finally polish for staining, as you need to remove a tiny amount of the top layer.