MOTUL RBF 660 Factory Line Racing Brake Fluid DOT 4 – Car and Motorcycle Brake Oil – 500 ml

MOTUL RBF 660 Factory Line: racing brake fluid DOT 4 500 ml

MOTUL RBF 660 Factory Line 500 ml is a 100% synthetic, non-silicone racing brake fluid developed for hydraulic brake and clutch systems subjected to high temperatures. It is the recommended choice for sports cars, modified vehicles, track days, racing use, and high-performance road driving when the manufacturer requires a fluid compatible with the DOT 4 specification.

High Temperature Resistance

The main advantage of MOTUL RBF 660 is its high thermal resistance. The dry boiling point reaches 325 °C, while the wet boiling point is 205 °C. These values help maintain a more consistent pedal response during repeated and intense braking, reducing the risk of vapor bubble formation in the system when operating at very high temperatures.

The product can be used with conventional steel disc systems and has been formulated to withstand the typical stresses of competition braking systems.

Ideal for Sport and Track Day Use

RBF 660 is particularly suitable for those who want to improve the consistency of the braking system without choosing a fluid intended exclusively for the most extreme racing applications. It therefore represents a balanced solution for street sports cars, vehicles used in track days, vehicles equipped with larger calipers, braided steel lines, and high-performance pads.

It can also be used on Alfa Romeo Giulia, Alfa Romeo Stelvio, and other sports cars, provided the braking system requires a compatible specification. Proper application should always be verified in the owner's manual or according to the vehicle manufacturer's instructions.

Technical Product Features:

Usage Instructions

For best performance, it is recommended to perform a complete system bleed, avoiding contamination with old or inferior quality fluid. Do not mix with silicone-based DOT 5 fluids or mineral LHM fluids.

Since brake fluids absorb moisture from the air, the container must be resealed immediately and stored in the original container. The replacement interval should be defined based on manufacturer recommendations and usage severity. More frequent checks and replacements are advisable for track use.

500 ml Packaging

The 500 ml packaging is practical for maintenance, bleeding, and brake fluid replacement on many systems. However, the required quantity varies depending on the vehicle and type of intervention. For a complete system flush, more than one bottle may be necessary.

Trust RFcarsystem for components and materials dedicated to brake system maintenance and upgrades. If in doubt about compatibility or required quantity, contact our customer service before purchase.

F A Q :

Can MOTUL RBF 660 be used on the road?
Yes, when the vehicle requires a DOT 4 compatible brake fluid. It is still necessary to follow the manufacturer's instructions.

What is the boiling point of RBF 660?
The dry boiling point is 325 °C, while the wet boiling point is 205 °C.

Can I mix it with another brake fluid?
To avoid reducing performance, a complete replacement is recommended. It must not be mixed with silicone-based DOT 5 fluids or mineral LHM fluids.

What is the difference between MOTUL RBF 660 and RBF 700?
RBF 700 offers a higher dry boiling point: 336 °C compared to 325 °C for RBF 660. The declared wet boiling point is 205 °C for both.

This differentiation comes from the higher dry boiling point of RBF 700 and its specific positioning for extreme racing applications.

MOTUL RBF 700 Factory Line Racing Brake Fluid DOT 4 – Car and Motorcycle Brake Oil – 500 ml

MOTUL RBF 700 Factory Line: 500 ml racing brake fluid DOT 4

MOTUL RBF 700 Factory Line 500 ml is a 100% synthetic, non-silicone racing brake fluid compliant with the DOT 4 standard, developed to ensure high and above all consistent braking power when the system reaches extreme temperatures.

It represents the MOTUL proposal intended for the most demanding uses: competitions, intensive track days, high-performance vehicles, upgraded systems, and braking systems with racing carbon or ceramic discs. Thanks to DOT 4 compliance, it can also be used on high-performance road vehicles, provided the specification required by the manufacturer is compatible.

Extreme Thermal Performance

The strength of RBF 700 is the dry boiling point of 336 °C, higher than that of common DOT 4 brake fluids. The wet boiling point is 205 °C.

This high thermal stability helps limit the risk of vapor lock, i.e., vapor formation in the circuit that can make the pedal spongy and reduce braking effectiveness. The result is a more predictable response during repeated braking, prolonged sessions, and conditions where discs, calipers, and pads transfer a lot of heat to the fluid.

For Track, Competitions, and Upgraded Systems

MOTUL RBF 700 is recommended for users who require the maximum thermal margin available in the range, for example on cars prepared for the track, vehicles with high-grip tires, upgraded braking systems, or configurations subjected to high loads.

It can complement an upgrade consisting of sport pads, aeronautical brake lines, and high-performance discs. However, it does not replace proper system maintenance: the condition of seals, bleeding, brake cooling, and pad selection remain crucial for safety and consistent braking.

Product Technical Features:

Replacement Recommendations

To preserve the product characteristics, it is recommended to thoroughly empty and bleed the circuit, avoiding mixtures with old fluids or fluids with lower performance levels. Do not mix with silicone DOT 5 fluids or mineral LHM fluids.

The fluid is hygroscopic and therefore tends to absorb moisture from the environment. Keep the original packaging tightly closed and preferably use product from an intact container. Replacement frequency should follow the manufacturer's indications and be adapted to use. More frequent checks are advisable on the track.

500 ml Package

The 500 ml package is suitable for maintenance and bleeding interventions, but the required quantity depends on the vehicle and system volume. For a complete replacement, more than one package may be necessary.

Choose MOTUL RBF 700 Factory Line on RFcarsystem to bring your braking system to a higher performance level. Always check the specification prescribed by the manufacturer before purchase or request assistance from our team.

F A Q :

What is the difference between MOTUL RBF 660 and RBF 700?
RBF 700 offers a higher dry boiling point: 336 °C versus 325 °C of RBF 660. The declared wet boiling point is 205 °C for both.

This differentiation derives from the higher dry boiling point of RBF 700 and its specific positioning for extreme racing applications.

Can MOTUL RBF 700 be used on the road?
Yes, Motul foresees its use also on high-performance road vehicles compliant with the DOT 4 specification. Always check the manufacturer's prescriptions.

Is a 500 ml package sufficient?
It depends on the system volume and type of intervention. For a simple bleed it may be sufficient, while for washing and complete replacement two or more packages may be needed.

Can I mix it with a silicone DOT 5?
No. RBF 700 must not be mixed with silicone-based DOT 5 fluids or mineral LHM fluids.