Will the Starfarer be able to refuel itself?
Cloud Imperium
A Starfarer can refuel itself by processing fuel from its tanks. (That is to say, no need for a second Starfarer.)
starfarer.space · Q&A: MISC Starfarer - Part II
A Starfarer can refuel itself by processing fuel from its tanks. (That is to say, no need for a second Starfarer.)