It is given that battlestars use some sort of reaction mass to move, as they have glowing blue engines in the back end, unlike the cylon basestars, which are only presumed to move using a form of reaction-less drive.

What sort of fuel do Battlestars use as non-FTL propulsion?

  • “How do you think that Battlestar propels itself?” “Looks like some kind of reaction mass.” “How can you tell?” “Well, it’s so blue and glow-y.” Nov 4, 2016 at 23:58

2 Answers 2


Tylium is a material used to fuel the propulsion systems of Colonial and Cylon spacecraft. At least three forms exist: tylium ore, refined tylium precursor, and refined tylium (the fuel itself).

according to the wiki, and i remember this from the show Tylium is the primary fuel. wiki

  • Thanks! It's been a while since I watched the show, and I was curious!
    – Quiquȅ
    Jan 23, 2016 at 2:55
  • 2
    The article on FTL Drive says Tylium is the fuel for the FTL system--"On human ships, the FTL Drives are powered by refined tylium". Is there evidence it's also used for slower-than-light propulsion?
    – Hypnosifl
    Jan 23, 2016 at 2:56
  • as far as i know its the same fuel for everything
    – Himarm
    Jan 23, 2016 at 2:57
  • But by "as far as i know" do you just mean you don't know any evidence to the contrary so you assume it is, or is there any positive evidence to support this?
    – Hypnosifl
    Jan 23, 2016 at 2:58
  • @Hypnosifl as in from my remembrance of the show, this is the case, and it agrees with the wiki, but no im not 100% positive their isnt contradicting info out their.
    – Himarm
    Jan 23, 2016 at 3:02

Based on an episode in which at the time captain a dharm based on an episode in which at the time captain Lee Adama States that due to issues with tylium supplies all pilots are to watch their fuel burn until further notice . I believe this is season two episode five .

  • Can you provide any sources for your answer? It is recommended that you support your answer with as much evidence to show proof your answer is valid and not just an assumption you've made.
    – Edlothiad
    May 8, 2017 at 23:05

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