Anyone an Expert in Danish Modern Furniture of the '80s?

[Sharp Blade]

We are getting a new bedroom set, yes I know I SHOULD be making it, but I haven't this kind of skill...yet!
Anyway, I am looking to clean it before I sell it. I know it's teak, but I want to know the proper way to clean it. I have already tried mineral spirits but it just won't get whatever that "gunk" is off.
It appears to be finished with Teak Oil or something like it.

[froglips]

Teak oil is evil (in a good way). It penetrates then hardens. So its really tough stuff.

Feel better?

Might help to see some pics and some colorful descriptions of the "gunk".

Jim