CNN is reporting on an inventor that is creating bio-diesel from organic material, including dead cats.

Koch said around 20 dead cats added into the mix could help produce enough fuel to fill up a 50-liter (11 gallon) tank.

Koch says he can create diesel fuel for 1/5 the cost that petrol stations sell it for.

The German Society for the Protection of Animals is currently investigating the situation. Whose spokesperson says the practice is illegal.

UPDATE: Story is actually a hoax.

“It’s an alternative fuel that is friendly for the environment. But it’s complete nonsense to suggest dead cats. I’ve never used cats and would never think of that. At most the odd toad may have jumped in.”

A spokesman for Bild told Reuters the story was meant to show that cat remains could “in theory” be used to make fuel with Koch’s patented method.