I noticed this year there was a big push for a top-tier premium fuel "upgrade" among most gas stations Ive come across. My question here is what company provides the best overall premium? I have always used SA fuel(92 premium) and my cars have ran decent. But I have a tune coming up on my turbo-d and I am not going E-85 yet.(due to lateness in the year) I was leaning towards BP 93 premium. I have heard from a few that this fuel tends to be better than most. Have you guys heard or experienced anything similar or different? Or are these fuels damn near all the same at the premium level?