Here's a link to what I believe is excellent information from a knowledgable person on what is "good" gasoline.
Some info on gasoline...
He does mention in his post that Amoco Ultimate Premium stands out from the rest. So what zhandax mentioned has some merit to it.
If you search the same forum there's lots of discussion on using acetone as an additive.
I talked with the service folk at the Costco gas station near my house. They say they get up to four deliveries a day. I'll have to ask them about their filter maintenance.