Combines polishing galvinized on gleaner combine

Are you a John Deere combine ownerIJ

My dad said he used it. Try it in a small area and let us know.

Yes I own a 7721 JD pulltype but most recently purchased 1987 l3. Mine shines really nice was just curious for in the future if it may need polishing.Someone even said WD40 also works well for polishing.