Hmmmm...I don't know. WD-40 is a penetrating fluid, and I'm not sure I'd want it attacking my aluminum. I'm not saying it will, but I'd have to think it would to some extent. Even if it won't hurt it, it's still a short-term application, as the WD-40 will wear off pretty quickly, so you'll have to keep applying it. I'd also tend to think it'll attract and trap all kinds of dust.
I think maybe I'd stick to regular aluminum polish....but that's just my
![2 cents :2cents:](./images/smilies/icon_2cents.gif)