I remember when the attendant (always a young man) would run (in uniform) out of the gas station lobby, jog over to the car as soon as it pulled up. He'd raise the hood and check the oil. Then check tire pressure, then pump gas. My dad (being a New Yorker) always tipped the attendant. This would have been in the mid-late 60's. In the early 70's most people were pumping their own gas, but an attendant was available. Then the attendant totally disappeared by the mid-70's and I remember older folks complaining mightily.