[JavaBrewer]

My go to fuel used to be Chevron - I too believed the marketing.

For the last 15 years I have bought gas from whoever is cheapest and convenient. That would be Costco, Vons, and a sampling of no-name stations in North county San Diego. Never had a problem with any of our vehicles. Have not noticed improved performance or MPG when using name brand stations on road trips. YMMV.

Oil changes are @ 5K miles too.