Yeah, I gotta clean up and polish the aluminum valve cover off my '83 Benz 2.4 diesel so I can give it to my dad for his '83 benz 2.4 diesel ( same car as mine (240D ). He wanted me to polish it a long time ago but I havn't gotten a chance. he want's to be able to change it from an original to a custom look and back and sofourth with the only expense of a valve cover gasket each time and if he's careful, maby not even that.