I remember back in the 1960s buying 2 gallon cans of refined used motor oil for $2.00 a can. All the local gas stations sold bulk oil in glass bottles with metal spout tops for 35 cents a quart. A friend worked in a Flying A gas station. Everytime they sold quart of oil at the station, they would set the paper oil can upside down on a small barrel and save the small amount of oil left inside to use in their oil burning 1950 Chevy sedan delivery powered by a babbit pounding 216 engine.
Gort.