Red/white I am assuming your are referring to the Client .........SPEEDWAY. Speedway exists under the Marathon umbrella. Marathon gas stations do get shop, but I have yet to see any Speedway station get shop.
According to Wipedika----------->"In January 2014, Speedway president Tony Kenney publicly announced that Speedway is committed to adding alternative fuels at its stations, focusing specifically on E85 Ethanol and Compressed Natural Gas (CNG). In an interview with Fuels Forward blog, Kenney said "E85 to me is a good answer".[16] "The automobile manufacturers are making flex-fuel vehicles that run on E85, it doesn't void manufacturer warranties; it's been proven effective for a number of years. I think it's a viable alternative in terms of adding renewable fuels into the supply chain." Kenney has also expressed concern for making available E15, a blend of 15% ethanol and 85% gasoline, at Speedway stores. E15 is only approved by the EPA for use in 2000 vehicle models and newer, and some unanswered questions remain in regards to retailer liability."
I have never brought fuel at Speedway but I will if they ever took up mystery shopping I would be gamed. I mention a Client gas station because a MSC is not mentioned.