Richard, it may be old, but you'll have to explain it to me I'm afraid.
Once a blond went to a garage and asked for a can of 710. The mechanic could not help but the blond was insistent, so she took him to the car and pointed to the upside down oil filler cap. "Told you I need 710" she explained to the mechanic.
The orange cap above for the bevel box has "OIL" written on it.