Allinol is the alternative fuel used by racers in Pixar's Cars 2 World Grand Prix.
The fictional fuel is promoted as a clean alternative to petroleum and becomes central to the film's espionage plot. Sir Miles Axlerod, the billionaire who organizes the World Grand Prix, presents Allinol as an environmentally friendly breakthrough. The fuel's apparent benefits and hidden dangers drive the conflict involving spies, race cars, and a device that can affect engines.
Allinol is an invented name, so it should not be replaced with real-world terms such as ethanol or biofuel. Cars 2 uses the fuel storyline to connect international racing with a larger conspiracy, while the first Cars focuses more directly on Lightning McQueen's personal change. The film's fictional technology is part of its spy-movie parody and is not a real commercial fuel brand.