Also, when accessing one of the 152
Nuka-Cola Vending Machines scattered indoors and outdoors throughout the Wasteland there is approximately a 10% random chance of finding a Nuka Cola Quantum. The contents of Nuka-Cola Vending Machine load the first time you enter a cell and never reset. Thus to maximize this chance you should save before entering a new cell and travel to the vending machine. If it doesn't contain a quantum, load and try again. Remember, outdoor cells encompass several map markers, frequently.