I agree with the above comments, especially the cheap gas problem. Around here, the independent brands don't have their own refinery/distribution system so buy their gas from others. Basically, they get what's leftover after the refinery puts out its trucks for the day. So, I stick to major brands.
When I was a super-bike racer and rode my bikes between races, I learned from others which brands were the best. Back in 80s, Union76 and Texaco were best, Chevron was 2nd best (of what was available to me here). So, you might Google gas quality and see what you learn. Of course, on the road, you often have no choice! :)
Bill