Just wondering what the story is with this. I wash the car frequently, the alloys are still (somehow) in very good conditions - no dings/scratches etc. However, along the side edge of the spokes there is this yellowing/oily looking mess. Just wondering how this happens and if I can use something to remove it. Usual fallout remover etc hasn't done anything.

Is the 'usual fallout remover' such as IronX as I'd have thought that would sort it?

When you say you wash the car frequently, do you wash it yourself or do you use one of those American automatic car washes that take the car slowly through the machine? 

I ask because on the few occasions I have used one of those ARC carwashes it has left a yellowing stain on the leading edge of my doors which was very hard to get rid of.

I'm a bit of a detailing addict, hence why I'm confused as I've never had this on any other car before. The fallout removers I've tried include the Obsession Wax Renegade, Car-Chem Revolt, and what little I had of Iron X left from a while ago. I think they've all got virtually the same active ingredients anyway? What I think I was more interested to know is if this is an actual change in the alloy itself...

 

Edit: I should say they're nothing like what they used to look like, so the various fallout removers certainly did something. But they've still got a sort of yellow tint on the inner surface of the spoke. I know Iron-X is likely the best for this, so maybe I should try it again (and get more of it)

Edited 1 April, 20179 yr by JesVRS

Totally abuse my s3 which has the Helios wheels. 19k on the clock and the only cleaning it has is through the local Tesco auto wash every month or so. On the one occasion I actually washed it myself a few weeks ago noticed a bit of oily yellowing on the inside edge of the spokes. Used some old wonder wheels cleaner and it mostly came off. 

Unless it's bonded metal (which it doesn't sound at all like) then IronX isn't your go to. Try tar and glue remover mate, or some strong APC. Yellow goop sounds like tar and/or grease. My alloy hubs came leathered in it from factory and it took a fair while to shift.