I have noticed that all of my lawnmowers and snow blowers have a capacity of 20 oz. (0.59 liters) for oil changes.
Does any company sell oil containers in a 20 oz. (0.59 liters) bottle for convenience sake?
I have only seen the standard 1qt (946 ml) and 5 qt (4.73 l)containers in the store.
I know that you can get a 20 oz. bottle of Toro oil from a Toro dealer. Personally I would say you will be paying the same price, maybe more as you would if you would purchase a 32 oz. bottle. The choice is yours.