Grog: cars of that vintage didn’t have a light indicating low oil level; they only had one indicating low pressure. It was possible to have a shot-glass full of oily foam circulating in the engine under enough pressure to keep the light from coming on. Of course, in those days you bought gas at a full service station (for 29.9 cents a gallon), and the pump jockeys routinely checked the oil at each fill-up, so people rarely ran out.
Grog: cars of that vintage didn’t have a light indicating low oil level; they only had one indicating low pressure. It was possible to have a shot-glass full of oily foam circulating in the engine under enough pressure to keep the light from coming on. Of course, in those days you bought gas at a full service station (for 29.9 cents a gallon), and the pump jockeys routinely checked the oil at each fill-up, so people rarely ran out.