Allinol is the alternative fuel promoted by Sir Miles Axlerod in Pixar's Cars 2.
Axlerod presents Allinol as a clean, renewable fuel and uses the World Grand Prix to demonstrate that ordinary cars can run on it. The fuel becomes central to the film's conspiracy because the race cars are secretly targeted through its effects.
The plot later reveals that Axlerod is the mastermind behind the scheme. He uses the fuel controversy and attacks on Allinol-powered racers to create fear and manipulate public opinion about alternative energy.
Allinol is fictional and should not be confused with the real brands and fuels that inspired the film's automotive setting. Rust-eze and Dinoco are fictional sponsors, not the name of the World Grand Prix fuel.