Gas Pump Girls

Gas Pump Girls is a 1979 American comedy film. Directed by Joel Bender, it stars Kirsten Baker as June. Following their high school graduation, June and her friends, while her uncle recovers from a heart attack, take over the operation of his gasoline station, which faces stiff competition from the newer, bigger, more modern station that has recently opened across the street.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.