Allinol is the name of the World Grand Prix's main sponsor in Pixar's Cars 2.
Allinol is presented as an alternative fuel developed by Miles Axlerod, the former oil tycoon who becomes the organizer of the World Grand Prix. The race is designed to promote the fuel as a cleaner replacement for petroleum-based gasoline. Lightning McQueen enters the international event, while Mater becomes involved in an espionage plot.
The sponsorship is central to the film's mystery because the Allinol fuel is connected to a device that causes race cars to malfunction. The story eventually reveals that the apparent environmental breakthrough is part of Axlerod's scheme.
Allinol is fictional and should not be confused with Dinoco, the blue petroleum company associated with the Piston Cup in the Cars universe. Rust-eze is another fictional brand, best known as Lightning McQueen's original racing sponsor.