Allinol is the fictional fuel promoted by Miles Axlerod in Pixar’s Cars 2.
The film’s international race is tied to the World Grand Prix, which is presented as a showcase for Allinol, a supposedly clean alternative fuel. Sir Miles Axlerod promotes the fuel while claiming it can power cars safely and reduce environmental harm.
Cars 2 later reveals that the fuel has been manipulated so that races can become dangerous when exposed to electromagnetic pulses. The scheme is designed to discredit alternative fuels and make petroleum appear indispensable. Allinol is therefore part of the movie’s espionage plot rather than a real commercial product.
The name is a playful alteration of “all-in-oil,” fitting the franchise’s habit of using automotive wordplay. The plot also explains why Mater, initially treated as a comic side character, becomes important to uncovering the conspiracy.