If you guys did research into gas you would see any brand is fine
There is no difference from one brand to the next.
The poster who posted the top tier gas producers are manufacturers who have introduced a detergent into their blend of gasoline. These top tier gas producers were asked by GM, BMW, Toyota, Audi, and VW to formulate a detergent as the current EPA minimum detergent requirements do not go far enough to ensure optimal engine performance.
Since minimum additive performance standards were first established by EPA in 1995, most gasoline marketers have actually reduced the concentration level of detergent additive in their gasoline by up to 50%. So gas used to better 15-20 years back when
Even if you used Walmart gasoline, which is not a top tier product, you could still use the blue bottle of techron like every 10,000 miles or so to get the same results.
There is no difference between the major brands of gas. Truth is you don't know where the gas you buy is coming from Chevron, Texaco, Shell, or BP. It all comes from the same well in a ground or in a pipeline, on a ship that comes into port, get distributed by wholesalers, and then retailed to where you pump your gas. Your shell station could be selling you a chevron blend. You dont know.
Gas Stations are sold whatever the wholesalers get at the port terminal. it could their blend or someone elses.