SKU: 1604848547

Motul Brake Fluid RBF 660 FACTORY LINE 500ml

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Description

Motul Brake Fluid RBF 660 FACTORY LINE 500mlVery high dry boiling point of 617F (325C) and a wet boiling point of 400F (204C). For all types of hydraulic brake and clutch actuators requiring non silicone synthetic fluid. Specially designed to resist extreme temperature generated by racing brakes (carbon and ceramic) only allowing a minimal air entrance for brake cooling. A brilliant upgrade on standard brake fluid for any track bred vehicle, Motul RBF 660 goes well beyond all conventional DOT

Very high dry boiling point of 617F (325C) and a wet boiling point of 400F (204C).

For all types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid.

Specially designed to resist extreme temperature generated by racing brakes (carbon and ceramic) only allowing a minimal air entrance for brake cooling. 

A brilliant upgrade on standard brake fluid for any track-bred vehicle, Motul RBF 660 goes well beyond all conventional DOT 3, 4 and DOT 5.1 standards, and goes one step further than Motul RBF 600 by minimising air entrance on your vehicle's brakes, stopping your brakes from going cool and promoting aerodynamic efficiency.

Motul's RBF Brake Fluid range is their ultimate high-performance brake fluid formula, utilizing their vast range of 100% Synthetic technologies to ensure unsurpassed boiling points and the resistance of extreme braking temperatures in all race conditions.

Motul RBF is one of the most popular brake fluid ranges used in Australian motorsport.

500ML Bottle

Extreme thermal resistance and stability :
Very high boiling point (325°C / 617°F), superior to conventional DOT 5.1 non silicone base / DOT 5 silicone base fluids (260°C / 500°F mini) and DOT 4 (230°C / 446°F mini).
Enables effective brake even in extreme conditions. 
Better aerodynamic performance by reducing air entrance for brake cooling on cars.

Efficient when rainy :
Very high wet boiling point (205°C / 401°F) superior to conventional DOT 5.1 non-silicone base fluid (180°C / 356°F mini) and DOT 4 (155°C / 311°F 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 % of water.

Exceeding the DOT standards of dry boiling point while ensuring rubber seal compatibility, Motul brake fluid delivers performance you can trust. 

Before use always refer to the owner manual or handbook of the vehicle.

Please note RBF 660 is a high maintenance product
It is very hydroscopic and requires brakes to be bled regularly. For a high performance weekend drive we would strongly reccomend the Motul 600 over the 660. If you are running big brakes  or ceramic discs and pads and are used to doing regular changes and bleeds, then by all means the 660 will be for you.

The synergies between Motul and McLaren GT are evident: high performance,  
quality, prestige and a long, successful history in motorsport. Following a successful association in 2016 with McLaren GT customer race team, Garage 59, a newly announced partnership sees Motul become the approved lubricant supplier of McLaren GT and its customer teams. 

2016 was a successful debut year in the working relationship, with highlights including victory at the Bathurst 12 Hours in Australia, and a championship title in the Blancpain GT Series Endurance Cup.

The partnership will, from 2017, see Motul supporting six McLaren 650S GT3 models in the popular Blancpain Endurance Series and Blancpain Sprint Series – four entries in both championships from the British ‘Strakka Racing’ team – and two 570S GT4 entries in the British GT Championship with the ‘Black Bull Garage 59’ team.

Central to the deal is the technical relationship between the two companies, and products from Motul’s Motorsport Line range are now recommended to all new and existing customer teams. Among these products will be 300V Trophy 0W40 (engine oil), Gear 300 LS 75W90 (gear box oil) and RBF 660 (brake fluid).

 

Please note that due to it's hazard rating oil's cannot be sent via Australia Post, and must be sent via a courier. 

 

APPLICATION QUALITY PRODUCT RANGE OEM APPROVALS
       
BRAKE FLUIDS 100% SYNTHETIC CAR, MOTORCYCLE FMVSS 116 DOT 4 ; SAE J1703

 

Specification limits
TEST Unit  DOT 3  DOT 4  DOT 5.1 RFB 660
Dry boiling point °C >205 >230 >260 325 (617°F)
Wet boiling point °C >140 >155 >180 205 (401°F)
Viscosity at - 40°C (- 40°F) mm²/s <1500 <1800 <900 1698
Viscosity at 100°C (212 °F) mm²/s   >1.5   2.59
pH     7-11.5   7.15
Effect on rubber SBR (Styrene-butadiene)          
Volume change at 70°C (70 hours) mm   0.15-1.4   0.76
Softening (IRHD) NULL   10 max   4
Disintegration NULL   no   no
Volume change at 120°C (70 hours) mm   0.15-1.4   1.05
Softening (IRHD)     15 max   7
Disintegration     no N no
Evaporation          
Loss at 100°C weight %   80% max   50
Fluidity and appearance at low temperature          
Appearance at -40°C     No freezing   OK
Bubble time s   10 max   OK
Appearance at -50°C     No freezing   OK
Bubble time s   35 max   OK
Water tolerance          
Appearance at -40°C     clear   OK
Flow time s   10 max   OK
Appearance at +60°C     clear   OK
Sedimentation %   0.15 max   OK
Anti-corrosion properties: Weight variation          
Tinned iron mg/cm²   0.2 max   0.03
Steel mg/cm²   0.2 max   0.01
Aluminium mg/cm²   0.1 max   0.02
Cast iron mg/cm²   0.2 max   0.1
Brass mg/cm²   0.4 max   -0.04
Copper mg/cm²   0.4 max   -0.05

 

 

  

Motul are one of the world’s finest manufacturers of automotive lubricants. Famed for their line of 100% synthetic oils and fluids that they’ve developed over 160 years of history, Motul have earned the reverence and respect of passionate drivers, motorsport teams and mechanics throughout the world.

 

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Beverly
Louisville, US
★★★★★ 5
Worth the Wait
Format: Kindle
Kathryn Stockett's The Calamity Club is well worth the wait, just as good or even better than The Help. This historical novel has all the literary ingredients to be added to the classics. This book is both engaging and horrifying since it reveals the cruel beliefs in Mississippi's past and explains the rigid mind-set of contemporary politics and culture. I was incensed by the ignorance and lack of empathy. However, as throughout history, the theme of women helping other women gave the story conflict, suspense, and lots of humor. The characters and plot are so engaging I would like a follow-up story, maybe a part two. I am ready for a movie version, if Meg and Birdie are well cast. The Calamity Club was worth the wait!
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Reviewed in the United States on May 21, 2026
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Amazon Customer
Pawtucket, US
★★★★★ 5
Entertaining
Format: Kindle
I read this book on Kindle in about 3 days. Birdie Calhoun, one of the main narrators, has got to be one of the most likable main characters a book could create. She’s practical, God-fearing, driven, smart, and loyal. Meg, the second narrator, is witty and humorous to listen to, especially since you’re seeing things through the eyes of an eleven year old orphan. There are a few big reveals throughout the book, and around the midpoint there is a shift in storyline which will tell you how the book got its name. I saw some reviews say the book is a bit long, which doesn’t bother me. I see how the length may be necessary given the fact that the author had to bounce between two separate story lines and then merge them in the end. My only feedback about the length would be there is a lot of time and detail during the middle of the book (especially Meg’s time with her adoptive family) but less time spent on the ending, leaving things a bit rushed and many characters’ fate ambiguous. I found myself wanting more closure for characters Frances & Mrs. Tartt, as well as the boarders such as Flossy. On a historical level, this book provides context for a dark time in America where society wanted to annex anyone deemed undesirable or peculiar, especially promiscuous women. Society was hyper focused on separating the pious from the “imbeciles” and punished anyone whose lives didn’t fit the perfect Christian mold. This caused characters like Frances and Mrs. Tartt to be obsessed with their reputation, and fear of tainted reputation is a huge factor in decision making amongst the main characters. Birdie, Meg, and Charlie seem to be the main characters willing to take huge risks and sacrifices for those that they love. This book inspired me to do some of my own research and I learned something new about American history.
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Reviewed in the United States on May 28, 2026
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Taya
Chelsea, US
★★★★★ 5
An incredibly strong and memorable story.
Format: Hardcover, Format: Hardcover
⭐️⭐️⭐️⭐️⭐️ 5 glorious stars! Though she is big 656 paged girl, she offers so much heart. Lord how I loved this book. The characters were just so good together. Out of hardships, these women bound together for reasons of their own. Some of those reasons were tangled up with the other and none were wiser. Each, making an impact on another. This story offers hope where there’s tragedy, faith to persevere, lasting friendships, and love. Meg’s story of never giving up hope for her mother’s return, held me completely captive. 💖 Thank you Kathryn Stockett for penning a strong and memorable novel. Well done! I’m so pleased to have picked up this book to read and I hope you will too!
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Reviewed in the United States on May 21, 2026
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Bartika
Lowell, US
★★★★★ 5
A book that hugs back.
Format: Hardcover, Format: Hardcover
I picked this book for my brother-in-law when we were celebrating my sister’s pregnancy, and the title ‘Why a daughter needs a dad’ sealed the deal. The illustrations are beautiful and full of tenderness. The messages on each page are simple and meaningful. I could so clearly picture him reading it to his baby girl someday. It’s the kind of book that isn’t just read – it’s felt. A thoughtful gift for someone you love – especially during such a special season of life.
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Reviewed in the United States on February 13, 2026
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Cameron Hutcheson
Fort Morgan, US
★★★★★ 5
Great book, well written!
Format: Hardcover
I love reading this with my daughter, we have so much fun and the book is great! Fun pictures, fun ideas and very entertaining.
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Reviewed in the United States on April 30, 2026

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