Allinol is the controversial alternative fuel at the center of Pixar’s Cars 2.
Sir Miles Axlerod introduces Allinol during the World Grand Prix as a clean energy source that can power race cars. The fuel is promoted as an alternative to conventional petroleum-based racing fuel, and Lightning McQueen initially agrees to use it in the competition.
The apparent environmental campaign is part of a larger conspiracy. Professor Zündapp and the lemons use a device that causes cars running on Allinol to malfunction or explode. Their plan is to discredit alternative fuel and make petroleum-powered vehicles appear safer and more desirable.
Mater discovers important evidence while trying to understand the attacks. The plot combines international racing, espionage, and a conflict between competing energy systems. Allinol is fictional and exists only within the Cars universe; it is not a real commercial motor fuel.