Quick answer: Maintenance Oil is given by Quick Hand Zhang at his hideouts when you trade him treasures for Quick Hand’s Request. It Soul Tempers Goldblaze.
Where to get Maintenance Oil
Maintenance Oil is given by Quick Hand Zhang when you trade him treasures at his hideouts, part of Quick Hand’s Request. The treasure locations guide lists what he wants. His hideouts are in the Village of Lu, Pangzhen, Meigu Lake and the Mirage Estate.
Maintenance Oil item card
The item card reads:
Machine oil made by Quick Hand Zhang himself, essential to his daily care of old objects and rare treasures.
Every ingenious device that passes through Quick Hand Zhang’s hands is first examined for its origins, then its scars; only afterward does he dust it off, oil it, and return it to its case. Not a single step is to be done carelessly. As he puts it, objects have personalities too. Only by learning their quirks can he care for them properly.
Its effect line reads: “Used to Soul Temper the Goldblaze.”
What Maintenance Oil does
Maintenance Oil is one of the Soul Tempering materials, and it is used to Soul Temper the Goldblaze and nothing else.
| Weapon | Upgrade | Cost | Where |
|---|---|---|---|
 Goldblaze | Dodge Counter | 5,000 Remnant Dust + Maintenance Oil | Myst, Order’s underground tavern, Pangzhen |
To Soul Temper the Goldblaze, take the oil and 5,000 Remnant Dust to Myst in the Order’s underground tavern in Pangzhen. The upgrade it unlocks is Dodge Counter, which reads: “Press Block+Phantom Edges with precise timing just before an enemy attack lands to perform a Perfect Dodge counterattack that deals greatly increased damage.”
