Ran two tanks of v-power 93 through my BMW and no change-nada! I went back to Chevron Supreme 93Ii had been using. Also the Chevron stations are on my normal commute route.
There certainly is an abundance of Chevron stations in KY, isn't there? I always get the sense that if I turn around too quickly I'm going to fall face-first onto a Chevron forecourt.
In any case, Chevron is another "Top Tier" provider. I wouldn't expect any great gains comparing one "Top Tier" fuel to another, since they all adhere to a higher standard for deposit control.
Cheers