Overview
MOTUL DOT 5.1 is a long-life, 100% synthetic, non-silicone-base brake fluid for all types of hydraulically actuated brake and clutch systems requiring a fluid meeting DOT 3, DOT 4, or DOT 5.1 specifications. Its fluidity is specially designed for anti-lock brake systems (ABS) and other electronic stability programs (ESP, ASR, etc.), and its high wet boiling point (185°C/365°F) exceeds the DOT 3/4/5.1 minimum requirements, enabling a longer service life.
Compatibility
Compatibility information not available.
Key Features
- High wet boiling point, superior to DOT 3 (140°C min), DOT 4 (155°C min) and DOT 5.1 (180°C min) standard minimums
- Lower cold-temperature viscosity (820 mm²/s at -40°C) than DOT 4 (up to 1,800 mm²/s) and DOT 3 (up to 1,500 mm²/s) specs — allows easier flow through ABS micro-valves for better ABS/ESP/ASR response
- Perfectly neutral with seals used in braking systems
- Anti-corrosion
Applications
- All hydraulic brake and clutch systems specifying DOT 3, DOT 4, or DOT 5.1 (non-silicone) fluid
- Vehicles with ABS/ESP/ASR systems requiring quick brake actuation response
Specifications
| Standards | FMVSS 116 DOT 3 / DOT 4 / DOT 5.1 (Non Silicone Base); ISO 4925 (5.1, 4 & 3); SAE J1703 |
| OEM Approvals | No formal numbered OEM approvals stated (brake fluid governed by DOT/FMVSS/ISO/SAE fluid-class standards, not OEM approval codes). |
| Kinematic Viscosity | 2.1 mm²/s @100°C; 820.0 mm²/s @-40°C |
| Dry Boiling Point | 272°C / 522°F |
| Wet Boiling Point | 185°C / 365°F |
| Colour | Yellow |
| Base Oil | Glycol ether base, non-silicone |
| Pack Size | 12X0.500L |
| Size | 500ML |
Directions for Use
Use only in hydraulic brake and clutch systems designed for DOT 3, DOT 4 or DOT 5.1 fluid. Mixable with DOT 3, DOT 4 and DOT 5.1 non-silicone-base products; do not mix with silicone (DOT 5 silicone-base) or mineral-base (LHM) hydraulic fluids. Store in the original container, tightly closed, to prevent moisture absorption. Change interval: 12 to 24 months according to manufacturer's recommendations; for safety, draining once a year is recommended.
Installation and usage guidance is general reference only. Manufacturer instructions take precedence. Visitors uncertain about installation or use should seek professional advice.
FAQ
Can Motul DOT 5.1 be mixed with other brake fluids?
Yes — it is mixable with DOT 3, DOT 4 and DOT 5.1 non-silicone-base products. Do not mix with silicone (DOT 5 silicone-base) or mineral-base (LHM) fluids.
Why is Motul DOT 5.1 good for ABS-equipped vehicles?
Its lower cold-temperature viscosity (820 mm²/s at -40°C) than DOT 3/4 fluids allows easier flow through ABS micro-valves, supporting faster ABS/ESP/ASR response.
How often should Motul DOT 5.1 be changed?
Every 12 to 24 months according to manufacturer's recommendations; for safety, annual draining is recommended since brake fluid absorbs moisture over time.