Higher octane by itself doesn't help you unless you have a detonation problem. Other parts of the gas might have minor benefit but unless you are pushing the limits of your engine, you won't see anythjng but a drain on your wallet.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto
