Brake fluid is an excellent tire dressing. I've been using it for years. Not only is it cheap, it looks better that some of the specialty "tire black" which leaves the rubber too shiny. It can be used on any of your black rubber. Just wipe it on with a rag and then wipe off excess. Of course, keep from sloshing a bunch on your painted surfaces. Brake fluid has a rubber conditioner in its formula. (Rubber brake lines):cheers: