Midi-chloroxians were found in the lubricants of some droids, including the Jedi droid Skippy, and gave them mastery of the Force.
Behind the scenes
Midi-chloroxians, in name and function, resemble the midi-chlorians that are said to provide a connection to the Force in organic life.
Appearances
Sources
"Secrets of the Force" — Star Wars Insider 123 (reprinted in Special Edition 2013 and The Best of Star Wars Insider Volume 3)