![Valvoline sticker](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/b/b7/Valvoline_sticker.jpg/revision/latest?cb=20130916205228&path-prefix=en)
Sticker with Valvoline logo
Valvoline was a brand of motor oil in use on 20th century Earth.
In 1986, at least one San Francisco garbage truck carried a Valvoline sticker. (Star Trek IV: The Voyage Home)
Sticker with Valvoline logo
Valvoline was a brand of motor oil in use on 20th century Earth.
In 1986, at least one San Francisco garbage truck carried a Valvoline sticker. (Star Trek IV: The Voyage Home)