Billy recommended kerosene for the mechanics of the machine, and non pumice GOJO or GOOP for cleaning the body of the machine. As you can see from Blackberry's photos...it's NOT a good idea if the decals are exposed at all! Blackberry isn't the first to have lost decals and decal quality from using those products, and because of that some of us requested that the tutorials be removed so that others don't make the same mistakes of following them.