Originally Posted by Pathfinder813

I don't think you can unless you are SkyTeam Elite+ if I'm not mistaken. I once tried to go in to the AF lounge as KE J but did not have my PM card with me and they denied me entry even though my boarding pass indicated that I was Elite + and I was able to show them the DL app. This was in late 2012 so I'm not sure if they still require a physical card especially given how much better the DL app is now.

The KE lounge at T1 leaves a lot to be desired. They have packaged cheese, some instant noodles (Shin ramen and a few other Korean ones), some sandwiches and a very limited, albeit self-serve, choice of liquor, wine and beer. They also have bathrooms and a shower or two.

I've yet to try the new AF lounge but the pictures I've seen make it look a hundred times better than the KE lounge. KE has to up their game.