Lubricant acquired.
「潤滑油」を入手しました。
101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin

Lubricant is item 23 of the game's item table, in the Items group. The script names it on disc 1.
Lines of the script that name it, each with a link to its place in the script.
Lubricant acquired.
「潤滑油」を入手しました。
The guy acting as the big power generator was an old friend of mine.
He's been working hard to generate electricity, so he may be dried up.
Won't you take this lubricant I prepared for you?
Use it on him, and he'll generate electricity again, good as new.
Yes, he's a wangren, but I wonder if that only makes him happier...
We can't take this away from him, or he'll only become an object.
Now's my last chance... I have to help...
庇利路で発電機やってるやつは、古い友達なんだよ。
あいつ、一生懸命に発電してたんだけど、もう油が切れてるんだ。
うちの潤滑油を持って行ってやってくれないか。
これで、またもりもり発電できるようになるはずだ。
妄人だけど、物になってしまうより幸福だろ?そうだろ…?
このまま放っておくと、本当に物になってしまう。
今が最後のチャンスなんだ…俺にとってもな…
Item table: EMF Key Lubricant Malice Mirror
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503