I'm also a fan of Meguiar's stuff. Several of the numbered waxes and cleaner/waxes I use on my vehicles. Available at auto body supply stores. If you are working on your Jeunet and the paint is dulled a bit, one of the treatments with a light abrasive compound to it might be in order, to rub out the paint a bit. I would keep it off foil decals though. Just use regular wax over those if needed.