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Brake Fluid

Brake fluid is one of the most important fluids in a car as without it, stopping the vehicle safely would be impossible. The Brake fluid transmits the force exerted by the driver on the brake pedal onto the wheel brake.
To ensure perfect operation of the brakes, the brake fluid must be changed regularly during inspection or maintenance and tested with the correct brake fluid tester.
Brake fluid should be changed every two years.
The higher the DOT class, the higher the boiling temperature and wet boiling point. Higher DOT classes tend to allow longer maintenance intervals. The DOT standards are based on the American FMVSS-116 standard of the Department of Transportation (DOT).
Boiling Point and Viscosity
Dry Boiling Point - describes the property of the sealed new brake fluid. In this state, the brake fluid is almost anhydrous (substance containing no water). The dry boiling point is usually between 240 and 280°C.
Wet Boiling Point - determines the property of the brake fluid at the end of its life cycle, at a water content of 3.5% the fluid should be replaced. This defined wet boiling point must not be undercut.
Viscosity - describes the flow rate of the brake fluid. The lower the viscosity, the faster the brake fluid flows through the brake system, and the faster the brake signals are transmitted.
Important Notes
• Brake fluid is poisonous and a hazardous waste.
• Be careful when changing. The fluid weakens paints and plastics.
• It must not come into contact with eyes or skin. Always rinse spilled liquid with water.
• Do not pour the liquid into drinking water or mix with used oil.
• The colour of the brake fluid reveals nothing about its quality.
• Brake fluid should be stored in its original packaging and in a dry, cool and well-ventilated place.
Find out about Textar product verification here

DOT 4
Having an extremely high boiling point and lower viscosity than required, it meets and greatly exceeds regulatory standards. Also suitable for vehicles with ABS.
Vapour Lock formation
This sort of habit leaves room for the Vapour Lock, the formation of vapour bubbles due to boiling of the brake fluid that replace the normal fluid and are compressed, thereby sending the brake pedal to its fill stoke (spongy pedal). The origin is incident in the porosity of the tubes that make up the braking circuit, which in time draw moisture into the fluid, drastically reducing the boiling point. The result is a reduced braking efficiency.
Brembo Premium Brake Fluid
Brembo Premium brake fluids have a higher boiling point that exceeds the standard, thus offering superior resistance to the Vapour Lock and ensuring braking efficiency even at low temperatures. With high anti-corrosion properties and resistance to oxidation, Brembo brake fluid also allows for long-term unaltered chemical/physical characteristics of the fluid in operating circuit; therefore, preserving its integrity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
L040
The product you are viewing cross references to these numbers
Brake fluid DOT 4 LV (Low Viscosity) Textar.

Textar DOT 4 LV (Low Viscosity) is especially recommended for use in hydraulic brake and clutch systems of vehicles fitted with ESP, ABS and ASR with a high boiling point and outstanding performance at very low temperatures.
DOT 4 LV (Low Viscosity)
Dry Boiling Point ≥ 260° C
Wet Boiling Point ≥ 165° C
Viscosity at -40C < 750 mm2 /s
Brake fluid is one of the most important fluids in a car as without it, stopping the vehicle safely would be impossible. The Brake fluid transmits the force exerted by the driver on the brake pedal onto the wheel brake.
To ensure perfect operation of the brakes, the brake fluid must be changed regularly during inspection or maintenance and tested with the correct brake fluid tester.
Brake fluid should be changed every two years.
The higher the DOT class, the higher the boiling temperature and wet boiling point. Higher DOT classes tend to allow longer maintenance intervals. The DOT standards are based on the American FMVSS-116 standard of the Department of Transportation (DOT).
Boiling Point and Viscosity
Dry Boiling Point - describes the property of the sealed new brake fluid. In this state, the brake fluid is almost anhydrous (substance containing no water). The dry boiling point is usually between 240 and 280°C.
Wet Boiling Point - determines the property of the brake fluid at the end of its life cycle, at a water content of 3.5% the fluid should be replaced. This defined wet boiling point must not be undercut. <
Viscosity - describes the flow rate of the brake fluid. The lower the viscosity, the faster the brake fluid flows through the brake system, and the faster the brake signals are transmitted.
Important Notes
• Brake fluid is poisonous and a hazardous waste.
• Be careful when changing. The fluid weakens paints and plastics.
• It must not come into contact with eyes or skin. Always rinse spilled liquid with water.
• Do not pour the liquid into drinking water or mix with used oil.
• The colour of the brake fluid reveals nothing about its quality.
• Brake fluid should be stored in its original packaging and in a dry, cool and well-ventilated place.
Find out about Textar product verification here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95006
The product you are viewing cross references to these numbers

Brake fluid is one of the most important fluids in a car as without it, stopping the vehicle safely would be impossible. The Brake fluid transmits the force exerted by the driver on the brake pedal onto the wheel brake.
To ensure perfect operation of the brakes, the brake fluid must be changed regularly during inspection or maintenance and tested with the correct brake fluid tester.
Brake fluid should be changed every two years.
The higher the DOT class, the higher the boiling temperature and wet boiling point. Higher DOT classes tend to allow longer maintenance intervals. The DOT standards are based on the American FMVSS-116 standard of the Department of Transportation (DOT).
Boiling Point and Viscosity
Dry Boiling Point - describes the property of the sealed new brake fluid. In this state, the brake fluid is almost anhydrous (substance containing no water). The dry boiling point is usually between 240 and 280°C.
Wet Boiling Point - determines the property of the brake fluid at the end of its life cycle, at a water content of 3.5% the fluid should be replaced. This defined wet boiling point must not be undercut.
Viscosity - describes the flow rate of the brake fluid. The lower the viscosity, the faster the brake fluid flows through the brake system, and the faster the brake signals are transmitted.
Important Notes
• Brake fluid is poisonous and a hazardous waste.
• Be careful when changing. The fluid weakens paints and plastics.
• It must not come into contact with eyes or skin. Always rinse spilled liquid with water.
• Do not pour the liquid into drinking water or mix with used oil.
• The colour of the brake fluid reveals nothing about its quality.
• Brake fluid should be stored in its original packaging and in a dry, cool and well-ventilated place.
Find out about Textar product verification here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95002
The product you are viewing cross references to these numbers
Porsche Brake Fluid | Design911 Premium Performance Fluids for Safety, Responsiveness & Braking Precision
Brake fluid is the lifeblood of your Porsche’s braking system — transmitting hydraulic pressure from the pedal to the calipers for accurate and consistent stopping power. Over time, brake fluid absorbs moisture and degrades, reducing performance and increasing the risk of brake fade or failure. Replacing brake fluid at the recommended intervals is crucial to maintaining your Porsche’s safety, control, and performance under all driving conditions.
At Design911, we supply a comprehensive range of approved brake fluids, including high-performance DOT 4 and DOT 5.1 formulations. Each product is engineered to provide superior heat resistance, corrosion protection, and hydraulic efficiency. Perfect for road, track, and restoration applications, our brake fluids ensure consistent pedal feel, optimal braking response, and long-term system reliability.
What Does Brake Fluid Do?
Brake fluid plays an essential role in ensuring your Porsche’s braking system delivers precise, powerful, and repeatable performance.
Core Functions:
• Transfers force from the brake pedal to calipers via hydraulic pressure.
• Provides smooth, consistent braking response under heat and load.
• Prevents corrosion within the braking system.
• Lubricates key hydraulic components to reduce wear.
• Maintains consistent pedal feel across varying conditions.
Using the correct brake fluid type ensures your Porsche retains its braking stability and confidence, whether on road or circuit.
Why Does Brake Fluid Degrade or Fail?
Brake fluid naturally absorbs moisture from the atmosphere — even in sealed systems — which lowers its boiling point and reduces braking effectiveness over time.
Common Causes of Degradation Include:
• Moisture contamination leading to reduced boiling temperature.
• Heat cycles causing fluid breakdown or vaporisation.
• Corrosion from impurities or aged fluid.
• Incorrect fluid mixing leading to poor hydraulic performance.
• Extended service intervals without replacement.
When brake fluid deteriorates, braking performance declines, leading to a spongy pedal feel, longer stopping distances, or even brake fade during intense use.
Why Replace or Upgrade Your Porsche Brake Fluid?
Regular fluid replacement ensures your Porsche’s braking system operates safely and efficiently. High-performance fluids provide greater heat resistance and consistent hydraulic pressure — critical for both spirited road driving and track sessions.
Key Benefits:
• Restores sharp, consistent pedal feel.
• Prevents corrosion and internal system wear.
• Raises boiling point for improved fade resistance.
• Compatible with advanced ABS and stability systems.
• Available in DOT 4, DOT 5.1, and racing formulations.
• Ideal for road, motorsport, and restoration applications.
Design911’s Porsche brake fluids are developed to meet the exacting demands of performance braking systems — delivering confidence, consistency, and control.
Highlights
• Premium Porsche brake fluid for road and performance use.
• Available in DOT 4, DOT 5.1, and race-grade formulas.
• Protects braking systems from corrosion and vapor lock.
• Ensures consistent pedal feel and braking power.
• Suitable for modern and classic Porsche models.
• Essential for safety, maintenance, and track preparation.