Pittsburgh, PA. December 1st, 1913. The advertisement that announced the world’s first drive-in service station in Pittsburgh read, "The Gulf Refining Company desires to announce that to accommodate its rapidly growing trade in the East End, it has opened a gasoline filling station on the corner of Baum Boulevard and St. Clair Street, fully equipped with the latest and most modern appliances, where it will supply That Good Gulf Gasoline. This gasoline is of high quality homogeneous and carefully refined from crude oil. It is also prepared to supply a full and complete line of automobile lubricating oils and greases, and invites particular attention to the high quality of its Supreme Auto Oil which is offering in three grades, viz. light, medium and heavy. Your patronage is respectfully solicited."
http://www.gulfoil.com/AboutGulf/100Years.aspx