Frame Saver, and it's alter ego Amsoil HDMP, do contain rust inhibitors so they are more than a "sticky oil" (actually a wax) that coats the frame tubes. I wouldn't rely on it to salvage a badly rusted frame but it is great on a new frame and will greatly extend the life of one that has some rust already in place. They are more effective than boiled linseed oil or similar coatings that are nothing more than a barrier film.