SM-DBOIL Mineral Oil - 100ml

Shimano's hydraulic disc brakes are designed around mineral oil, not DOT fluid, and this genuine SM-DBOIL is formulated specifically for that job. It's non-corrosive, so it won't eat away at seals or strip paint the way DOT fluid can if it drips during a bleed, and it resists absorbing moisture from the air — which keeps lever feel consistent bleed after bleed instead of getting spongy over a season.

The 100ml bottle is sized right for a full brake bleed with enough left over to top off or purge stray bubbles, making it a shop-shelf staple for anyone who services their own Shimano brakes.