Not any parts--the more Cybertronian-specific they are, the better they work. But I can make do. We're fully inorganic, but we have irreplaceable organs the same way some organics do--things we can't just build. T-cogs, brain modules, spark chambers. Others, sometimes. [He rubs absently at one wrist and continues patiently.] We can't just cobble anything together. We consume energon for fuel, and it's used to fuel most things of ours as well.

[He pauses, then looks down at Newt at that last, a new respect and not a little understanding flickering in his eyes.]

...yeah. He's going to be fine, given enough time to heal. [Ratchet looks at Newt for a long moment, deeply calculating, before he continues.] He's one of my oldest friends, even from before the war. ...thank you, for helping him.