In Pixar's Cars 2, Miles Axlerod promotes Allinol as an alternative fuel to petroleum.
Allinol is introduced through the World Grand Prix, the international racing event that brings competitors from several countries together. Axlerod presents the fuel as clean and environmentally friendly, encouraging racers to use it in the competition.
The fuel is central to the film's espionage plot. The villains secretly use electromagnetic pulses to make cars running on Allinol explode, creating fear about the product and damaging its reputation. The scheme is designed to make petroleum appear safer and more reliable by comparison.
Allinol is fictional and should not be confused with a real commercial fuel brand. The story also makes clear that the danger comes from the villains' pulse weapon, not from ordinary use of the fuel itself. The plot's fuel controversy is one reason Cars 2 combines racing with spy-film conventions.