In Pixar's Cars 2, Allinol is the alternative fuel promoted during the World Grand Prix. The fictional fuel is marketed as an environmentally friendly product and becomes central to the film's racing and espionage plot.
The World Grand Prix is presented as a showcase for Allinol, with racers using it during the international competition. Sir Miles Axlerod, the event's organizer, promotes the fuel as a technological breakthrough that can replace conventional gasoline.
The apparent environmental campaign hides a larger scheme. Cars that use Allinol are targeted by a device that can trigger dangerous engine reactions, allowing the conspirators to discredit the fuel and profit from the resulting fear. Mater becomes involved after discovering clues connected to the plot.
Allinol is fictional and should not be confused with Rust-eze or Dinoco. Rust-eze is Lightning McQueen's sponsor, while Dinoco is a major racing brand in the Cars universe. The fuel's name is one of the film's deliberate wordplay elements, echoing the idea of an all-purpose fuel.