Zip's Nuka Fix

 refers to an unmarked and repeatable quest in Fallout 3.

Zip in Little Lamplight trades various items for Nuka-Cola to satisfy his Nuka-Cola habit.

Note
If Zip gives you ten 10mm bullets, he calls them "lucky," but there is nothing special about them.

He does not accept Ice Cold Nuka-Cola or Nuka-Cola Quantum

Bug
It is possible that sometimes he does not want Nuka-Cola from you and instead says something bad or good about you regarding to your karma. Try talking to him a few more times and he will eventually say something about Nuka-Cola, then you can activate this quest by speaking to him about it. This may not be a bug, seems like a random speech event too.

Reward
One of the following (not a complete list!):
 * 10 10mm bullets
 * 24 5.56 mm bullets
 * 1 crunchy mutfruit
 * Mentats
 * 20 Microfusion Cells
 * 1 Stimpak