Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml

Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml

Q: Will it mix with the non synthetic fluid?

According to the Motul documentation: "Avoid mixing with polyglycols based brake fluid with lower performances. Do not mix with silicone (DOT 5 silicone base) or mineral base fluids (LHM)."

Q: Can you use this on 04 subaru wrx as the amazon fitment is saying no?

All Brake Fluid, including Motul 660, is a universal fluid that can be used in any motor vehicle's hydraulic brake system, including a Subaru WRX. However, Motul 660 is a much more expensive high temperature brake fluid designed for racing car applications on the race track where the brakes can glow red hot and regular specification brake fluid would boil and the brakes would fade. Unless you are racing your car or using the brakes really hard in repeated applications, you will not need such a higher specification and cost brake fluid like Motul 660.

Q: Is it normal that its a little darker (darker shade of yellow)? Just used it to flush and replace oil fluid

It will be darker when you flush brake system as it is mixing with the old brake fluid during the system bleed process.

Q: What is the date format printed on the bottle and is this a manufacturing date or expiration date?

Hi Robby, Usually for the oil there is no expiration unless it is having contact with the air. As the brake fluid is hydroscopic, if you keep the bottle in cool, dry well ventilated place it should be good for a few years. The date is manufacturing date printed. Motul can answer better about it. Regards. Team 2to4wheels

4.7/5

Product ID: 218679910

Secure Transaction

Details

Package Information
Bottle
Liquid Volume
500
Item Weight
110 Grams
Recommended Uses For Product
cars
Item Form
Oil

💧Wet boiling point 205°C / 401°F

🔥Boiling point 325°C / 617°F

🏎️Optimized for racing carbon & ceramic brakes

Frequently Bought Together

Motul 101667 RBF 660 Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml

Engine Ice Off-Road High-Performance Motorcycle Coolant and Antifreeze Blue

K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Honda, Kawasaki, Triumph, Yamaha Motorcycles, KN-204-1

Description

🏁 Dominate the track with Motul’s ultimate brake fluid – where precision meets power.

MINIMIZED AIR INGRESS - Enhances aerodynamic efficiency by reducing air entrance during brake cooling, boosting responsiveness.
UNIVERSAL COMPATIBILITY - Perfect for hydraulic brake and clutch systems using non-silicone synthetic fluid—racing or street ready.
SUPERIOR WET PERFORMANCE - Keeps braking sharp even in rain with a wet boiling point of 205°C, outclassing standard fluids.
EXCEEDS INDUSTRY STANDARDS - Surpasses DOT 3, DOT 4, and DOT 5.1 benchmarks for next-level safety and reliability.
RACE PROVEN THERMAL STABILITY - Withstands blistering temps up to 325°C for unbeatable brake performance under pressure.

Motul 847205 RBF 660 Factory Line is a 100% synthetic DOT 4 racing brake fluid engineered for extreme thermal resistance with a boiling point of 325°C. Designed for hydraulic brake and clutch systems, it excels in both dry and wet conditions, outperforming conventional DOT 3, 4, and 5.1 fluids. Its advanced formula minimizes air ingress for improved brake cooling and aerodynamic efficiency, making it the go-to choice for professional racers and performance enthusiasts.

Specifications

Package Information	Bottle
Liquid Volume	500 Millilitres
Item Weight	110 Grams
Recommended Uses For Product	cars
Item Form	Oil
Global Trade Identification Number	00182682992405, 03374650235011, 03374650020501
Net Quantity	500.0 millilitre
UPC	782645025470 182682992405
Product Dimensions	8.38 x 18.42 x 5.46 cm; 110 g
Item model number	MTL101667
Manufacturer Part Number	101667
OEM Part Number	101667-A038
Volume	0.5 Cubic Inches
Assembly Required	No
Item Weight	110 g

Have a Question? See What Others Asked

Will it mix with the non synthetic fluid?

Can you use this on 04 subaru wrx as the amazon fitment is saying no?

Is it normal that its a little darker (darker shade of yellow)? Just used it to flush and replace oil fluid

What is the date format printed on the bottle and is this a manufacturing date or expiration date?

Reviews

4.7

All from verified purchases

A**R

👍

Good, fluid is fully sealed and I recieved one thats relatively recently manufactured (06/2024) works well for track use.

8.07.2025

D**R

Normal

23.05.2025

A**R

It's not worth and there is no expiry date on it too, I don't want to ruin my bike

They have send 6 years old product

9.07.2025

M**H

Selling Expired Brake Fluid

The RBF 660 they are selling is of 2017 vintage. Unopened racing brake fluid has a shelf life of three years. They should be dumping, not selling this product!

13.10.2022

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

3066₴

Duties & taxes incl.

Ukrainestore

Free Shipping

with PRO Membership

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews