I worked for bmw for nearly a decade. Before these stickers tech support always recommended Shell, at least here in Canada. No ethanol, fewer additives, etc. We had so many more issue with cars running other brands, especially Petro-Canada in the winter.

shell’s gas kindof acts like oil and its high quality

Shell paid to have that there.

its like a michelan starred restaraunt. It used to mean something, but now cities can pay to be listed and then michelin will just happen to find a restaurant in said city that fits the bill. See st pete/tampa recently. none of those places belong anywhere near the list, but the marketing teams paid a lot.

I used to think it was a legit barometer to go off of until i read an article recently that said how st pete/tampas tourism departments paid to be listed. it makes so much sense now

Same. Shell 91 or higher

Shell uses much more detergents than other brands, very essential for vehicle health.