Motul DOT 5.1 Brake Fluid – 100% Synthetic High Performance
Motul DOT 5.1 Brake Fluid is a high-performance, 100% synthetic, polyglycol-based brake fluid designed for hydraulic brake and clutch systems requiring DOT 5.1, DOT 4 or DOT 3 specification fluids. With a high dry boiling point of approximately 270°C / 518°F and a wet boiling point of 185°C / 365°F, Motul DOT 5.1 provides dependable braking performance and is specially formulated for vehicles equipped with ABS systems.
Suitable for performance road cars and demanding braking applications, Motul DOT 5.1 offers excellent low-temperature fluidity, corrosion protection and compatibility with braking-system seals. It is a non-silicone DOT 5.1 fluid and can be mixed with compatible DOT 3, DOT 4 and DOT 5.1 non-silicone fluids where permitted by the vehicle manufacturer’s recommendations.
Available in 500ml, 1L and 5L sizes.
In stock
Motul DOT 5.1 High Performance Brake Fluid
Upgrade your vehicle’s braking fluid with Motul DOT 5.1, a high-performance synthetic brake fluid developed for hydraulic brake and clutch systems. Its DOT 5.1 formulation is designed to provide reliable performance across a wide range of operating temperatures while maintaining excellent fluidity for modern braking systems.
Motul specifically designs DOT 5.1 for hydraulic brake and clutch systems requiring DOT 5.1, DOT 4 or DOT 3 fluids, with the formulation particularly suited to vehicles equipped with anti-lock braking systems (ABS).
With a dry boiling point of approximately 270°C / 518°F and a wet boiling point of 185°C / 365°F, Motul DOT 5.1 provides a useful margin against brake-fluid boiling during demanding braking conditions. The wet boiling point is particularly important because brake fluid absorbs moisture over time, which can reduce its boiling point.
Designed for ABS Systems
Motul DOT 5.1 has low-temperature viscosity characteristics specifically suited to modern ABS systems. Motul’s technical documentation lists viscosity of approximately 820 mm²/s at -40°C and 2.1 mm²/s at 100°C, helping maintain fluid circulation through the small valves used in anti-lock braking systems.
The formulation is also designed to be neutral with braking-system seals and provide corrosion protection.
Long-Life Brake Fluid
Unlike simply selecting a fluid based on its DOT rating, brake-fluid condition is also affected by moisture absorption during service. Motul describes DOT 5.1 as a long-life brake fluid, with the high wet boiling point intended to provide longer service performance than conventional lower-specification brake fluids.
Motul recommends changing the fluid at intervals of approximately 12–24 months according to the vehicle manufacturer’s recommendations, with annual replacement recommended as a safety measure.
Key Features
- 100% synthetic brake fluid
- Polyglycol-based formulation
- DOT 5.1 non-silicone base
- Suitable for hydraulic brake and clutch systems
- Designed for ABS-equipped vehicles
- Dry boiling point: approximately 270°C / 518°F
- Wet boiling point: approximately 185°C / 365°F
- Excellent low-temperature fluidity
- Designed to protect against corrosion
- Compatible with braking-system seals
- Mixable with compatible DOT 3, DOT 4 and DOT 5.1 non-silicone fluids
- Available in 500ml, 1L and 5L packaging
- Made in France
Technical Specifications
| Specification | Motul DOT 5.1 |
|---|---|
| Brand | Motul |
| Product | DOT 5.1 |
| Product Type | Brake Fluid |
| Application | Hydraulic Brake & Clutch Systems |
| Base | 100% Synthetic / Polyglycol |
| Silicone Base | No – Non-Silicone |
| Colour | Yellow |
| Dry Boiling Point | Approx. 270°C / 518°F |
| Wet Boiling Point | Approx. 185°C / 365°F |
| Viscosity at -40°C | Approx. 820 mm²/s |
| Viscosity at 100°C | Approx. 2.1 mm²/s |
| Standards | FMVSS 116 DOT 5.1 / DOT 4 / DOT 3, SAE J1703 |
| Compatible Systems | DOT 5.1, DOT 4 and DOT 3 applications where manufacturer-approved |
| Packaging | 500ml / 1L / 5L |
| Manufacturer | Motul |
| Manufacturer Part Number | 100950* |
*Motul’s current UK product page identifies 100950 with an EAN of 3374650005041 and lists 500ml, 1L and 5L quantities. Check the specific package/variant before assigning the MPN to every variation.
Compatibility & Application
Motul DOT 5.1 is intended for hydraulic brake and clutch systems where the vehicle manufacturer specifies or permits DOT 5.1, DOT 4 or DOT 3 brake fluid.
It is particularly suitable for:
- Performance road cars
- Modified vehicles
- Vehicles with ABS
- Hydraulic clutch systems
- Performance braking systems
- Enthusiast and fast-road applications
- Vehicles requiring DOT 5.1 specification brake fluid
Always check your vehicle manufacturer’s specification before changing brake fluid.
Important Compatibility Information
Motul DOT 5.1 can be mixed with DOT 3, DOT 4 and DOT 5.1 non-silicone-base fluids where compatible with the vehicle manufacturer’s requirements.
Do not mix with DOT 5 silicone-based brake fluid or mineral-based LHM fluids.
Always follow the vehicle manufacturer’s recommended brake-fluid specification and bleeding procedure.
Storage & Safety
Brake fluid is hygroscopic and absorbs moisture from the atmosphere. Keep the container tightly closed and store the fluid in its original container to minimise moisture absorption. Motul states that the product can be aggressive to skin, paintwork and varnishes.
If brake fluid comes into contact with paintwork, clean the affected area promptly according to the appropriate safety guidance.
Why Choose Motul DOT 5.1?
Motul is a well-established lubricant and fluids manufacturer with a strong presence in motorsport and performance automotive applications. DOT 5.1 is designed to provide a combination of high boiling performance, low-temperature fluidity and compatibility with modern hydraulic braking systems.
For performance-car owners looking for a quality DOT 5.1 brake fluid for road, fast-road and demanding braking applications, Motul DOT 5.1 is a strong choice.
Buy Motul DOT 5.1 Brake Fluid UK
Order Motul DOT 5.1 Brake Fluid from PerformanceCarsParts.co.uk for performance-focused automotive parts and fluids. Available in multiple pack sizes, this high-performance synthetic brake fluid is suitable for a wide range of hydraulic brake and clutch applications.
PerformanceCarParts.co.uk ships across the UK, making it easy to order Motul performance fluids and automotive upgrades for your vehicle.
Frequently Asked Questions
What is Motul DOT 5.1 brake fluid?
Motul DOT 5.1 is a 100% synthetic, polyglycol-based, non-silicone brake fluid designed for hydraulic brake and clutch systems requiring DOT 5.1, DOT 4 or DOT 3 fluids.
What is the boiling point of Motul DOT 5.1?
The current Motul technical information gives a dry boiling point of approximately 270°C / 518°F and a wet boiling point of approximately 185°C / 365°F.
Is Motul DOT 5.1 suitable for ABS?
Yes. Motul states that DOT 5.1 is specially designed for anti-lock braking systems, with low-temperature viscosity characteristics intended to facilitate fluid circulation through ABS micro-valves.
Can Motul DOT 5.1 be mixed with DOT 4?
Motul states that DOT 5.1 can be mixed with DOT 3, DOT 4 and DOT 5.1 non-silicone-base brake fluids. Always check the vehicle manufacturer’s requirements before mixing fluids.
Can Motul DOT 5.1 be mixed with DOT 5?
No. Motul specifically advises against mixing this product with DOT 5 silicone-base brake fluid. It should also not be mixed with mineral-base LHM fluids.
How often should Motul DOT 5.1 be changed?
Motul recommends a change interval of approximately 12–24 months according to the vehicle manufacturer’s recommendations, with annual draining recommended for safety.
What colour is Motul DOT 5.1?
Motul DOT 5.1 is listed as yellow in the technical data.
Delivery & Returns
UK Delivery
We deliver throughout the United Kingdom using reliable courier services. Delivery times vary depending on stock availability, supplier location, product size and destination.
Shipping charges are calculated at checkout where applicable. Larger, heavier, specialist or supplier-direct items may incur additional delivery charges.
Dispatch Times
We aim to dispatch in-stock products as quickly as possible. Some specialist, imported, made-to-order or supplier-direct performance parts may require additional processing time.
If you require a product by a specific date, please contact us before ordering so availability can be checked.
Tracking
Tracking information will be provided where available once your order has been dispatched.
International Delivery
International shipping may be available for selected products and destinations. Import duties, taxes, customs charges and local handling fees are normally the responsibility of the customer unless otherwise stated.
Returns
Please contact us before returning an item. Products should be returned in accordance with our returns policy and in suitable condition where applicable.
Special-order, made-to-order, customised or imported products may be subject to different cancellation and return conditions.
Damaged, Faulty or Incorrect Items
Please inspect your order as soon as it arrives. If an item is damaged, faulty or different from what you ordered, contact us promptly with your order number and clear photographs where relevant.
Vehicle Fitment
It is the customer’s responsibility to confirm product compatibility before installation. If you are unsure, contact us with your vehicle registration or VIN and the product SKU before ordering.










