When I first got my driver’s license, the only vehicle I got to drive was my Dad’s 1955 Buick Special, turquoise with a white top and no power steering. Dad was very generous about letting me use his car, but each time I borrowed it, a somewhat lengthy negotiation was mandatory in which he pretended he might not let me take the Buick and I would assure him that I wouldn’t be joyriding anywhere and that I would put in some gas to replace what I used. In those days I could pull into a station, say, Give me a couple dollars worth and get 6 or seven gallons. When I graduated from college, I bought a brand new Alfa
Romeo Spyder which got great gas mileage but required premium gasoline. Flush with cash from my first real job, I wanted the best for my baby, so I stopped only at Sunoco stations and chose the highest of the Custom-Blended Grades, 260. Sunoco 260 had an octane of 106 whereas current premium has an octane of 91.