Road grim

[A1Detail]

21742

What is this on the vehicle? I cannot get it off I have tried bug and tar removal.

[Eric@CherryOnTop]

Try iron x, looks like metal contaminants.


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[cplchris]

looks like rail dust that is starting to rust embedded in the paint, try using clay or preferably iron-x or a similar iron removing product.

[Pureshine]

I get that on my white car sometimes clay takes it off most of the time.

[Sicoupe]

I get this on the back of my car a lot too, thanks for the tips guys:)

[KillaCam]

Clay or iron x should take that off.

[SYMAWD]

Spray with Iron X and watch them melt away:
http://i1014.photobucket.com/albums/af270/SYMAWD/IMAG1282_zps39f00fbe.jpg (http://s1014.photobucket.com/user/SYMAWD/media/IMAG1282_zps39f00fbe.jpg.html)

[A1Detail]

Tried clay and some of it came off. Need to buy iron x. Thanks everybody

[EddieF]

Tried clay and some of it came off. Need to buy iron x. Thanks everybody

My girl has a white Altima and she gets the same thing. IronX it, let it dwell for a little bit, then clay it with the ironx on it. Don't forget the clay lube.

[HateSwirls]

I think the guys gave you the advice you needed already.
I'd clay it first and see what that does, it should remove most of it, if not all.