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
Upon bringing your first Nuka-Cola to Zip, he gives you ten 10mm bullets. Zip calls these bullets "lucky" but there is nothing special about them.

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