Well, I admit I don't clean my expy like I should. But when I do, the wheels have brake dust that is really baked on and hard to get off. I have the 18" aluminum wheels and mostly it is in the corners of the spokes. I have used a bristle brush and simple green, but it only gets it so far. Anyone have any suggestions to get all of it off?

 

Here's the stuff I use and it works great.

A2Z™ All Wheel & Tire Cleaner

Mark

 

What happens is the dust gets embedded in the clear coat. You already know, washing them at least twice a month is mandatory...

I would try using a clay bar, the kind used for paint. Mequiars makes a readily available set for under $20. Don't use the clay on the paint after you do the wheels.