I'm pretty sure polish and a polisher would remove it. I would try a lot of lube and clay it before trying the polish. If you have turtle wax you can try that. The wax is strong enough to remove oxidation. I don't use turtle wax any more but I have used it on the z to remove stuff stuck to the car that soap won't remove. I only use clay to remove stuff on the paint.
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2010 k23
H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts
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