Who would give you a quest to find a soft drink that was only in testing 2000 plus miles away in DC? Why would are character care about some formula found on a computer? Why would anyone care? Chances are along with that formula would be a report about all the bad crap that came along with testing which would make anyone say "ok why would anyone drink this?." Even if you did find it how would you sell it? Who would buy it? Why buy it when you have four other soft drinks around? It would just be a pointless quest. How would you make it, you have radioactive barium isotopes laying around? It just does not fit.
I didnt say a quest to find it that would be stupid.I said you could find it,as in optional,like schematics in the main game,and if you played Fallout 3 you saw that crazy Nuka-Cola chick in Girdershade apparently that stuff is highly addictive.I mean come on if people can sell and would buy drugs why wouldnt they buy a special type of Nuka-Cola they have never tried?Also regular nuka-cola was bad for you that stuff gave you radiation before the war,it wasnt the nuclear war that irradiated it.