Question: are all bp gas stations top tier?
Answer: Most majors pump Top Tier gas and every gas station bearing their logo will be Top Tier. But not every major is Top Tier (just most of them). ... All of the top 10 gasoline retailers, by service-station count, are Top Tier: Shell, Exxon, Chevron, Speedway, BP, Circle K, Mobil, Sunoco, Valero, and QuikTrip.