I can’t speak for your location, but where I lived, in 1970 gas was 30-32 cents a gallon. It rose to 50 cents in 1973-74 after the oil embargo.
And a full size Snicker bar was a nickel!
That’s the kind of numbers I recall. Lived in Denver then. In the mid sixties, every Saturday we’d pile into the station wagon and drive to the fuel wholesaler downtown and fill the 5 gallon mower cans... 23c a gallon... hit 40c to 50c early 70s around the time I started buying it for myself, out of my $1.25/hour wages.
Yep, 28-33 cent gas was pretty common before the oil embargo in 73. The exception was Amoco premium ‘white gas’, the unleaded high octane gas sold for around 40 cents/gal where I lived.
Nobody I knew used the Amoco on a regular basis, but a lot of folks would run a tankful through their car once or twice a year believing it would clean out lead and carbon deposits.