OMG… Did you even read the link I posted? Here, let me quote it for you…
That’s also what’s wrong with an alternative proposal offered by many readers: singling out one brand of gasoline to “concentrate” the impact. Unfortunately, when you concentrate zero impact, you still end up with zero impact.
Big Oil companies like ExxonMobil and Chevron make very little of their money from retail gasoline sales. Most gasoline is sold at convenience stores, and even those with Big Oil company logos are mostly independently owned by people who make just a few cents on every gallon. Many of these store owners have invested their life savings to set up shop. Those are the people you’ll hurt if you target a single brand; refiners will simply sell the gasoline to other outlets.