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Carbon / Crud Cleaner

Carbon / Crud Cleaner

For cleaning carbon and dried grease in tight places try generic commercial automotive brake cleaner. Just as good, more readily available, and MUCH cheaper than the gun stuff. Products like GumOut™ can also be used. Note that these cleaners remove any preservative oil or grease coatings on the metal so you should lightly coat things with your favorite oil or preservative when done cleaning.