---
product_id: 48068951
title: "RBF 660 racing brake fluid, 0.5 L"
brand: "motul"
price: "€ 50.73"
currency: EUR
in_stock: true
reviews_count: 13
category: "Motul"
url: https://www.desertcart.it/products/48068951-rbf-660-racing-brake-fluid-0-5-l
store_origin: IT
region: Italy
---

# Wet boiling point 204°C Exceeds DOT 3 & 5.1 standards Optimized for racing brake systems RBF 660 racing brake fluid, 0.5 L

**Brand:** motul
**Price:** € 50.73
**Availability:** ✅ In Stock

## Summary

> 🔥 Stop at nothing—brake like a pro with Motul RBF 660!

## Quick Answers

- **What is this?** RBF 660 racing brake fluid, 0.5 L by motul
- **How much does it cost?** € 50.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/48068951-rbf-660-racing-brake-fluid-0-5-l)

## 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

- • **Trusted by Pros:** Top-rated by 1,500+ users and a best seller in automotive fluids—don’t get left behind.
- • **Aerodynamic Edge:** Reduces air intake for brake cooling, enhancing your vehicle’s aerodynamic performance.
- • **Wet Condition Mastery:** Maintains braking efficiency even in wet conditions with a high wet boiling point.
- • **Race-Ready Heat Resistance:** Withstands extreme temperatures up to 204°C to keep your brakes performing under pressure.
- • **Certified Performance Boost:** Exceeds DOT 3 and DOT 5.1 standards for superior reliability and safety.

## Overview

Motul RBF 660 Factory Line is a premium 0.5L racing brake fluid engineered for high-performance brake and clutch hydraulic systems. It boasts a superior wet boiling point of 204°C, surpassing conventional DOT 4 and 5.1 fluids, ensuring consistent braking under extreme heat and wet conditions. Certified beyond DOT 3 and 5.1 standards, it’s optimized for steel and carbon racing brakes, enhancing aerodynamic efficiency by reducing brake cooling air intake. Trusted by professionals and enthusiasts alike, Motul RBF 660 delivers unmatched reliability and performance on the track.

## Description

RBF 660 Factory Line (DOT 4) 0. 5 litres. The aim of Motul is to offer many high quality products to customers and satisfy the needs of all customers. To achieve this, Motul will spend more time to design the products.

Review: Great - Quality brake fluid, used before quick delivery
Review: Best brake fluid on the market - This is the best brake fluid you can buy no more boiling the brake fluid can't recommend this enough!

## Features

- Suspected of damaging fertility or the unborn child.
- For all brake and clutch hydraulic systems where a non-silicone synthetic fluid is recommended. Specially designed to withstand the high temperatures of racing brake hydraulics (steel or carbon) and clutches. Exceeds DOT 3 and DOT 5.1 standards, except for viscosity at -40°C / -40°F.
- Provides better aerodynamic performance by reducing air intake for brake cooling in vehicles. Efficient in wet conditions: The very high wet boiling point of MOTUL RBF 660 FACTORY LINE (204 °C/399 °F) is higher than that of conventional non-silicone based DOT 5.1 (180 °C/356 °F mini) and DOT 4 (155 °C/311°F mini) brake fluids and therefore maintains braking efficiency under wet conditions.
- Motul RBF 660 factory line (dot 4) 0. 5 litres
- Country of Origin: DE

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004LF1U5O |
| Best Sellers Rank | 1,872 in Automotive ( See Top 100 in Automotive ) 204 in Vehicle Oils & Fluids |
| Brand | Motul |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,512) |
| Date First Available | 28 Mar. 2012 |
| Item Weight | 110 g |
| Item model number | MTL101667 |
| Manufacturer | MOTUL IBERICA, S.A. |
| Manufacturer part number | 101666 |
| Model | MTL101667 |
| OEM Part Number | 101667-A038 |
| Viscosity | 1.5-2.5 centistokes at 100 degrees Celsius |

## Product Details

- **Brand:** Motul
- **Liquid volume:** 500 Millilitres
- **Package information:** Bottle
- **Vehicle service type:** Car, Motorcycle
- **Viscosity:** 1.5-2.5 centistokes at 100 degrees Celsius

## Images

![RBF 660 racing brake fluid, 0.5 L - Image 1](https://m.media-amazon.com/images/I/71jjj6Q8i-L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: £26 for one litre? That cant be right. Why is this oil so expensive?**
A: Think you can get it for £18 if you want to wait a week for delivery.   If your a prime member £26 you'd get it next day. 
Depends if you valve your time and a journey to your local motorbike shop I suppose.

**Q: It's ok for bmw 320d from2012?**
A: It’s suitable for any vehicle but you shouldn’t mix the fluids. If you’re using this you should ensure you’re flushing the system fully. 
Just so you know this is a higher spec fluid (higher boiling point) and it will be a waste of money unless you’re tracking the car.

**Q: What's the viscosity at -40°c°f? looking for 750 cst or 750 mm²/s to help brake esp system.**
A: Not this it’s racing fluid  high temp

**Q: Can you use this for Road bike use**
A: Hello,I confirm that you can use this oil to drive on the road.It is a high quality oil.Thank youSPO moto scooter

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by V***S on 6 November 2025*

Quality brake fluid, used before quick delivery

### ⭐⭐⭐⭐⭐ Best brake fluid on the market
*by L***A on 19 January 2026*

This is the best brake fluid you can buy no more boiling the brake fluid can't recommend this enough!

### ⭐⭐⭐⭐⭐ Cheap performance upgrade you can really feel.
*by J***N on 3 May 2020*

Forget intakes and power etc, if your going to be tracking your car the best thing you can do is get a set of braided brake lines and this brake fluid. Im running a fiesta ST180 on OEM pads and discs and the difference the lines and fluid made were crazy. Full day at Caldwell park and I didn't have brake fade once. Confidence in the pedal let me push harder and harder.

## 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 Italy*
*Store origin: IT*
*Last updated: 2026-03-22*