For me it's not about gas going bad, it's about the fuel vaporizing in the fuel system and starving the engine on really hot days or when under hood temps go up from ideling in a long drive through line.
Even a “clear” fuel will vapor lock today. All pump gas blends are designed to work with EFI, so the distillation curve is built for that.
Blocking the heat crossover is a must any more. The fuel doesn’t need all that heat. Keeping engine temperatures at 180 degrees or less is a huge help.
