Blitzen Diesel is a petroleum brand in the timeline of Wolfenstein II: The New Colossus. After the German victory in World War II, the world adopted diesel as its predominant commercial transportation fuel instead of gasoline. Blitzen quickly took over American oil companies such as Standard Oil to develop a nationwide distribution franchise in the occupied United States.
Blitzen Diesel's logo is a white lightning bolt on a half-orange, half-black diamond shaped background. The name likely comes from the German word "Blitz", meaning "lightning". It has been infamously applied to Germany's tactic of Blitzkrieg ("Lightning War") in WWII where the German army used concentrated firepower to quickly overwhelm enemy forces and advance across Europe without allowing a counterattack. Advertisements credit Blitzen as having more efficient fuel than its competitors and being victorious. Blitzen gas stations also sell Malted Milk, local newspapers, snacks, and literature.
One of Blitzen Diesel's stations was located in downtown Roswell, New Mexico. It was owned and managed by local businessman Hunter Jones. Manager Jones was secretly opposed to the the Nazi regime, but he urged his employees to hide their own criticisms of the oppressive government. In 1961, there was a local fuel shortage in Roswell due to increased deployment of Supersoldaten and APCs.