---
product_id: 218679910
title: "Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml"
brand: "motul"
price: "€ 142.38"
currency: EUR
in_stock: false
reviews_count: 9
url: https://www.desertcart.gr/products/218679910-motul-847205-rbf-660-factory-line-dot-4-100-percent
store_origin: GR
region: Greece
---

# Wet boiling point 205°C / 401°F Boiling point 325°C / 617°F Optimized for racing carbon & ceramic brakes Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml

**Brand:** motul
**Price:** € 142.38
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Push your limits, not your brakes! 🏁

## Quick Answers

- **What is this?** Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml by motul
- **How much does it cost?** € 142.38 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/218679910-motul-847205-rbf-660-factory-line-dot-4-100-percent)

## Best For

- motul enthusiasts

## Why This Product

- Trusted motul brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Perfect for hydraulic brake and clutch systems, including carbon, ceramic, and steel discs.
- • **Minimizes Air Entrapment:** Enhances aerodynamic brake cooling by reducing air intake, boosting overall system efficiency.
- • **Exceeds Industry Standards:** Outperforms DOT 3, DOT 4, and DOT 5.1 fluids for unmatched reliability.
- • **Superior Wet Boiling Point:** Maintains braking efficiency in wet conditions with a 205°C wet boiling point.
- • **Race-Proven Thermal Stability:** Withstands extreme heat up to 325°C, ensuring brake performance under pressure.

## Overview

Motul 847205 RBF 660 Factory Line is a 100% synthetic DOT 4 racing brake fluid designed for hydraulic brake and clutch systems. It boasts an ultra-high dry boiling point of 325°C and a wet boiling point of 205°C, outperforming conventional brake fluids. Engineered for extreme racing conditions, it minimizes air intake for better brake cooling and is compatible with carbon, ceramic, and steel brake systems, ensuring reliable, high-performance braking in all environments.

## Description

This is used or hydraulic actuated brake and clutch systems requiring non-silicone synthetic fluid. It is specially designed to resist to extreme temperature generated by racing carbon and ceramic brakes allowing minimizing air entrance for brake cooling. It can be also used with conventional steel discs and clutch systems actuators. It widely exceeds DOT 3, DOT 4 and DOT 5.1 standards (except for DOT 5.1 viscosity at - 40 degree centigrade). It has extreme thermal resistance and stability due to very high boiling point (325 degree centigrade / 617 degree Fahrenheit), hence is superior to conventional DOT 5.1 non silicone base / DOT 5 silicone base fluids (260 degree centigrade / 500 degree Fahrenheit mini) and DOT 4 (230 degree centigrade / 446 degree Fahrenheit mini). This enables effective brake even in extreme conditions. Better aerodynamic performance by reducing air entrance for brake cooling on cars. It is efficient when rainy with very high wet boiling point (205 degree centigrade / 401 degree Fahrenheit) superior to conventional DOT 5.1 non-silicone base fluid (180 degree centigrade / 356 degree Fahrenheit mini) and DOT 4 (155 degree centigrade / 311 degree Fahrenheit mini) enables to keep efficient braking while rainy. Brake fluids tend to absorb humidity from the air, which reduce boiling point and increase the risk to get to "vapor lock" phenomena. The wet boiling point is measured by humidifying the product with about 3.5 percentage of water.

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

## Features

- RBF 660 Factory Line Dot-4 Synthetic Racing Brake Fluid
- This is used or hydraulic actuated brake and clutch systems requiring non-silicone synthetic fluid
- Item capacity- 500 ml

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004LF1U5O |
| Assembly Required | No |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,471) |
| Date First Available | 4 August 2016 |
| Item Dimensions LxWxH | 8.4 x 18.4 x 5.5 Centimeters |
| Item Weight | 110 g |
| Item model number | MTL101667 |
| Manufacturer Part Number | 101666 |
| Net Quantity | 500.0 Milliliters |
| OEM Part Number | 101667-A038 |
| Product Dimensions | 8.38 x 18.42 x 5.46 cm; 110 g |
| Volume | 0.5 Cubic Inches |

## Product Details

- **Brand:** Motul
- **Flash Point:** 204 Degrees Celsius
- **Liquid Volume:** 500 Millilitres
- **Package Information:** Bottle
- **UPC:** 782645025470 182682992405

## Images

![Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml - Image 1](https://m.media-amazon.com/images/I/417cQClPyFL.jpg)
![Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml - Image 2](https://m.media-amazon.com/images/I/41AqZ8PxZnL.jpg)
![Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml - Image 3](https://m.media-amazon.com/images/I/41J98RgZgxL.jpg)
![Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml - Image 4](https://m.media-amazon.com/images/I/41jaSVxh90L.jpg)
![Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml - Image 5](https://m.media-amazon.com/images/I/71jjj6Q8i-L.jpg)

## Questions & Answers

**Q: Will it mix with the non synthetic fluid?**
A: 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?**
A: 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**
A: 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?**
A: 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 👍
*by A***R on 8 July 2025*

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

### ⭐⭐⭐⭐ Normal
*by D***R on 23 May 2025*

Normal

### ⭐ It's not worth and there is no expiry date on it too, I don't want to ruin my bike
*by A***R on 9 July 2025*

They have send 6 years old product

## 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

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-08*