Mutagenic Fuel is a green substance that is used for Speed Demon to run with. The Mutagenic Fuel is actually Mutagen. The Mutagenic Fuel debuts in Race with the Demon.


Ever since a car mutated into a mutant car, known as Speed Demon, the car's fuel turned into Mutagen, making it the Mutagenic Fuel.

TV Show

Season 3

Race with the Demon



  • It still has the same ability of mutating any organism into a mutant.
  • The fuel is useful for Speed Demon.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.