2004 a6 hesitation
 

Hey guys, new to the forum and I already know I am going to spend way to much time on here!! So I just bought my first Audi, it is a 2004 a6 Quattro 3.0. the problem I am having is a one to two second hesitation coming from a full stop. I have a good friend that has a 2002 BMW who suggested I try using chevron techron as "it has additives that the Germans use". He also suggested only filling up at certain gas stations because they have the same additives. I was thinking he may be onto something with running a cleaner through it as the previous owner did not run premium through it (they only put 4000 miles on it). Could this be causing the hesitation and simply running this cleaner through it fix my issue?