I saw this today, posted in the 1963 & 64 Cadillac Community: http://groups.msn.com/196364CadillacCommunity/the63and64cadillacclub.msnw I figured it would be of interest, and am passing it on. ~Jason According to GaryAllan: "After a recent post about how to polish the grill, I went back into eBay and found the seller of a 1963 grill that was indeed highly shiny and polished. I emailed the seller and he was kind enough to email me back. I did some research into what he told me and it is so simple. The anodized aluminum will never gleem and shine like chrome if it has turned dull. That is what anodizing is suppose to do, protect the aluminum underneath it. The more polish etc. you use the more the anodizing will work to protect the underneath. The web site I found for polishing anodized aluminum is http://www.secondchancegarage.com/public/665 . The instructions are to remove the anodizing, polish the aluminum to a high shine, then seal the aluminum with a clear polish, clear coat or like someone did, a clear powder coat. To paraphrase what they said to do: To remove the anodizing, take the aluminum part and soak it in a mixture of water and DRAINO drain cleaner. (Sodium hydroxide is the chemical). They recommend a mix of 1 tablespoon Draino to one gallon of water. Take the part, soak it in the mix so it is completely covered. Make certain there is plenty of fresh air, the fumes are toxic. They say there will be bubbles forming on the aluminum surface and on the water mix, take the part out of the mix and gently shake the "smut", the chemical residue, off the piece. Keep checking the piece every minute or so and keep removing the smut until you have a completely clean surface. They say if it going too slow, you can add more drain cleaner. There should be a flat uniform color, stains and blemishes should have disappeared leaving just scratches. Rinse thoroughly with fresh water. Any dark spots may be residual smut and needs to be removed by further treatment. Rinse, and rub clean and dry. Sand with 800 grit paper to remove scratches to take it to a bright shine. Once as shiny as desired, I hope someone else here can add about how to sand because*I have not done it, protect the piece with waxing or some type of clear coating. I bought an extra grill for my 63 and will try this later in the Spring when I can do it outside. No recommendations were given as how to dispose of this chemical soup once you have done it. Any ideas would be appreciated. I would not send down the drain into a septic tank, maybe the municipal sewer system would handle it ok. After all, some places have some pipe that is aluminum and people do use draino to clean drains. I also went to google and searched how bikers clean and polish aluminum on bikes because they have many parts highly polished aluminum and found the same advice. Gary If anyone does this process, please let us all know by posting it on the board. From: ogaribay37 great post, as for the junk left over let it dry, then it is no longer toxic, and throw it away in garbage."