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Mineral brake oil

The hydraulic fluid used in Shimano, Tektro, Magura and some SRAM disc brakes. Each maker wants its own oil, and it must never go in a DOT brake.

Last edited Nov 9, 2026 by Pedalwise team Edit History Add a subpage

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Mineral brake oil is the fluid inside many hydraulic disc brakes. It carries the force from your lever to the caliper pistons. Shimano, Tektro and Magura brakes use it, and so do SRAM's Maven brakes (SRAM support). It's a different fluid from DOT brake fluid, and the two never mix.

Use only the oil your brake's maker specifies. Shimano, Tektro and Magura each say other fluids can damage the brake or make it fail (Shimano dealer manual, Tektro bleed procedure, Magura MT manual). Never put mineral oil in a DOT brake, or DOT fluid in a mineral oil brake.

What it's used for

Topping up and bleeding hydraulic brakes, for example after a hose change or when the lever turns soft. See bleeding hydraulic disc brakes and fix a spongy brake lever.

What to look for

  • Shimano: genuine Shimano mineral oil from a freshly opened bottle. Don't reuse oil that came out of the brake, since it may hold water (Shimano dealer manual).
  • Newer Shimano MTB brakes: some models, such as BR-M9200, BR-M8200 and BR-MT805, take SHIMANO Low Viscosity Oil instead. Never mix it with standard Shimano mineral oil (Shimano oil manual).
  • Tektro: Tektro mineral oil only. It's dyed red and has an additive for a wider temperature range (Tektro FAQ). TRP sells its mineral oil for all TRP and Tektro hydraulic brakes (TRP).
  • Magura: MAGURA Royal Blood only (Magura MT manual).
  • SRAM Maven: Maven's seals were developed with Maxima Mineral Brake Oil (SRAM support).
  • Handling: wear gloves and eye protection. Mineral oil can irritate skin and eyes (Tektro owner's manual). Dispose of used oil legally, never down a drain (Magura MT manual).

Typical price

TRP sells its mineral oil at $12.57 for 100 ml and $71.49 for 1 L on its own store (read Nov 9, 2026) (TRP).

Best price we found

Prices change often, and a local shop may match them.

Where to buy

  • The brake maker's own store where it sells direct, such as TRP's mineral oil page for Tektro and TRP brakes.
  • Large bike retailers listed above, choosing the bottle that matches your brake's maker.
  • A local bike shop, see find a shop. A shop can also bleed the brake for you.

Videos

How to Bleed Hydraulic Brakes: Shimano® Reservoir Style from Park Tool: Pushes fresh mineral oil through a Shimano brake and shows why only mineral oil goes in that system.

Guides that use it

Sources

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CC BY-NC-SA 4.0Text by Pedalwise and contributors, shared under CC BY-NC-SA 4.0. Linked videos and manuals keep their own terms. How to reuse it