What is up with this elephant oil cap. I see them on ebay, being touted as if they were they holy grail. What's the story on these? did they only come on a particular year? Or are they a non North American market item? I have one in my spare parts collection. Should I shine it up and put it on? Right now, I have one of the super-rare 710 caps on my car. It's neat. If you look at it up-side-down, it says "OIL" isn't that cool?