The Mobil station I regularly fill up at is 3-4 cents more than the no name across the street. Use ExxonMobil rewards you get 3 cents back per gallon.Illinois, Indiana, and Wisconsin do as well.
The “no name” and name brand stations, as well as Top Tier vs non-Top Tier are generally within 5-10 cents of each other in my area, with the name brand top tier being the cheaper option.
Total wash here. However the no name has a better beer selection and stays just as busy so there is that. Know your audience I guess