Was Sunoco a regional brand? Because I don't remember ever seeing a Sunoco station back when I could have really used it. (To be honest, I don't think I've ever seen an actual Sunoco station in person.) We all went to Texaco and paid like 57 cents a gallon for the premium "good stuff." No gas was too expensive for our race cars! We were such big spenders! ROFLMAO!
Oh, and you never put more than a quarter of a tank in on race day, or you'd be too heavy and end up wallowing like a hog on the starting line. AFTER the races, we went and filled up.