Brake fluid DOT 5.1 500 ML Motul

KSh1,800KSh2,000 (-10%)

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Brake fluid DOT 5.1 500 ML Motul

Motul’s Fully Synthetic Brake Fluid is designed for all hydraulic actuated brake and clutch system in accordance with DOT 5.1,DOT 4 and DOT 3 manufacturers recommendations.

DOT 5.1 brake fluid is a type of hydraulic fluid specifically formulated for use in modern automotive braking systems. It belongs to the Department of Transportation (DOT) standard classification, indicating compliance with certain performance and safety standards set forth by regulatory authorities. Unlike its predecessors, such as DOT 3 and DOT 4 fluids, DOT 5.1 brake fluid offers several distinct advantages owing to its chemical composition and properties.

Properties and Characteristics:

  1. High Boiling Point: One of the primary characteristics of DOT 5.1 brake fluid is its high boiling point, exceeding that of DOT 3 and DOT 4 fluids. This property is crucial in high-performance braking systems and heavy-duty applications, where braking generates significant heat. A high boiling point helps prevent brake fluid from vaporizing under extreme conditions, which could lead to brake fade or loss of braking effectiveness.
  2. Low Viscosity: DOT 5.1 brake fluid exhibits lower viscosity compared to its predecessors, resulting in improved fluidity and responsiveness within the braking system. This characteristic enhances brake pedal feel and allows for more precise modulation of braking force, contributing to enhanced driver control and safety.
  3. Compatibility: DOT 5.1 brake fluid is compatible with most braking system components, including rubber seals, hoses, and metallic surfaces. This ensures proper lubrication and sealing properties, reducing the risk of leaks, corrosion, and premature component failure.

Functions and Importance:

  1. Hydraulic Transmission: The primary function of brake fluid in a hydraulic braking system is to transmit force from the brake pedal to the brake calipers or wheel cylinders, initiating the braking process. DOT 5.1 fluid, with its superior hydraulic properties, ensures efficient and reliable transmission of pressure, enabling rapid response and consistent braking performance.
  2. Heat Dissipation: During braking, kinetic energy is converted into heat, raising the temperature of brake components and fluid. DOT 5.1 brake fluid’s high boiling point enables it to withstand elevated temperatures without forming vapor bubbles, which could compress and compromise braking efficiency. This property is particularly crucial in demanding driving conditions, such as mountain descents or prolonged heavy braking.
  3. Corrosion Prevention: Brake fluid also serves as a hydraulic medium and a protective agent for internal components of the braking system. DOT 5.1 fluid’s chemical composition helps inhibit corrosion and oxidation within the system, preserving the integrity of brake lines, master cylinder, and calipers. This extends the lifespan of critical components and maintains braking system reliability.
  4. Water Absorption Resistance: Another significant advantage of DOT 5.1 brake fluid is its low water absorption characteristics. Unlike DOT 3 and DOT 4 fluids, which are glycol-based and hygroscopic, DOT 5.1 fluid is silicone-based and hydrophobic. This reduces the risk of water contamination within the braking system, which can lead to corrosion, fluid degradation, and impaired braking performance.

Consequences of Inadequate Brake Fluid:

  1. Brake Fade: Inadequate brake fluid with a low boiling point can lead to brake fade under heavy braking conditions, resulting in a loss of stopping power and increased braking distances. This compromises vehicle safety and increases the risk of accidents, especially during emergency maneuvers.
  2. Brake System Malfunction: Contaminated or degraded brake fluid can cause corrosion, seal deterioration, and hydraulic system malfunctions, leading to brake system failures. Such failures pose a serious safety hazard, as they can occur unexpectedly and without warning, putting the driver and passengers at risk.
  3. Reduced Braking Performance: Old or contaminated brake fluid can result in spongy brake pedal feel, reduced braking effectiveness, and uneven braking force distribution. This compromises vehicle control and handling, especially during aggressive driving or adverse road conditions.


In conclusion, DOT 5.1 brake fluid plays a pivotal role in ensuring the safety, reliability, and performance of a vehicle’s braking system. Its unique properties, including high boiling point, low viscosity, and corrosion resistance, make it indispensable in modern automotive applications. Understanding the importance of DOT 5.1 brake fluid underscores the need for regular maintenance, including fluid inspection, flushing, and replacement, to preserve braking system integrity and enhance vehicle safety. Neglecting the condition of brake fluid can have severe consequences, emphasizing its critical role in safeguarding lives on the road.


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Brake fluid DOT 5.1 500 ML Motul

Brake fluid DOT 5.1 500 ML Motul

KSh1,800KSh2,000 (-10%)

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