What does the Millennium Falcon use for fuel (and how big is the fuel tank)?


2 Answers 2


Sublight Engines

According to the (canon) Force Awakens: Incredible Cross-Sections, the Falcon uses

liquid metal fuel

to power its sublight engines. There's no indication which metal.

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You can see the fuel tank on this earlier (and non-canon but still excellent) plan from Star Wars: Incredible Cross-Sections. Assuming it's hollow, the tank depicted appears to be around 3-4000 litres in volume.

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Hyperdrive Engines

The Hyperdrive engine is powered by ejecting

Hypermatter particles

The tanks are sufficiently large for them to cross half of the galaxy without refuelling.

  • 31
    In other words, it takes leaded
    – Machavity
    Commented Jan 29, 2018 at 21:48
  • 27
    @Machavity - No wonder Han is so mercurial...
    – Valorum
    Commented Jan 29, 2018 at 21:49
  • 8
    3,000-4,000 liters is quite a lot of T-1000s, if you think about it. Refueling must be pretty dangerous. Kind of surprised they never showed that process in any of the films; could have made for a pretty epic action sequence, with the right director. Commented Jan 29, 2018 at 22:47
  • 32
    "The liquid fuel sublimates into a poisonous gas"... Somebody needs to be taught the meaning of sublimation. Commented Jan 30, 2018 at 2:26
  • 6
    @Lexible It's simple terminology. Solids sublimate, liquids vaporize.
    – JAB
    Commented Jan 30, 2018 at 5:33

TLDR: liquid metal fuel

As suggested by @JohnP, from the Wookieepedia, YT-1300 light_freighter it is stated that the YT-1300 (the model of Millennium Falcon) use fuel cells powered by liquid metal fuel.

Another canon source is the Star Wars Millennium Falcon YT-1300 A 3-D Owner's Guide written by Ryder Windham himself:

Edit: as @Valorum says, those sources are not considered canon but rather "Legends" i.e. pre-2014 canon, subject to change. YT-1300 Propulsion


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