Mechanics: Do you know what is a Great gasoline for car that made in US?

What most people don't realize is that all gasoline in a particular city, sometimes an entire state comes to a shared distribution terminal either through a shared pipeline or on a barge. Each company gets credit for how much they put into the pipeline and gets charged for how much they take out. If you were to follow the delivery truck around you will even sometimes see one truck delivering gas to different brand stations. Even if the terminal is owned by one oil company all the companies have exchange agreements and trade gasoline with each other. It would cost too much money for each oil company to have a private distribution network. The companies add a slightly different additive package in the delivery truck to the gas going to their stations. So to answer your question there is no best gasoline. Chevron, Mobil, Phillips, and Louies Self Serv all sell the identical gas Not only is it identical but it is impossible to know where the oil came from or who refined it into gasoline.