Motul Brake Fluid RBF 660 FACTORY LINE 500ml
SKU: 1604848547

Motul Brake Fluid RBF 660 FACTORY LINE 500ml

Sale price$33.30 Regular price$37.00
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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.

 

Shipping Notes
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Exchange/Return Notes
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SKU: 1604848547

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Verified Purchase
Tamar G.
Houston, US
★★★★★ 1
Broke easily
Color: Blue
Not for agressive chewers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
S
Some Guy
Natrona Heights, US
★★★★★ 4
Durable But Quirky Interactive Ball
Color: Blue
I am 30 now and my tolerance for toys that break in 2 minutes is basically zero. I picked this up during a weekend DIY project when I was fixing the deck and needed something to keep the dog occupied. The E TPU material is straight up impressiveuch abuse it can take from a large breed. My dog tends to destroy generic store brand balls but this one survived being dropped down the stairs and tossed against the siding. It is comfortable enough to use daily without feeling like it is going to shatter or hurt the dog. The internal compartment where you charge it is smart and those little pockets for the charging port are actually useful sized for my fat fingers. The smart movement is a game changer for keeping a high energy dog moving when I am busy with home improvement tasks. I was slightly worried about the 8 hour battery life but it holds a charge well enough for a few play sessions. My whole household uses this now to entertain the dog as he will not leave us alone otherwise. It works best on my kitchen tiles but it barely moves on the thick rug in the living room which is frustrating. The vibration is loud enough to be annoying when I am trying to focus on work. It is a solid 3 star product as it does what it says but has some quirks that make it less than perfect. Spending 19.99 is fair for the durability you get compared to cheaper options. I like that it is USB rechargeable instead of eating through batteries. It is not perfect but it serves a purpose in my chaotic house.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
F
Frank Paprota
Boise, US
★★★★★ 5
Engaging and Durable: High-Energy Play with a Caveat for Sensitive Pups
Color: Blue, Color: Blue
Finding an automated toy that can survive the jaws of an aggressive chewer while keeping them physically engaged is a major win for busy pet owners. This smart interactive dog toy offers an excellent, high-tech way to keep high-energy dogs active, though its enthusiastic movement might be a bit intense for more timid pets. Dynamic and Instinct-Triggering Movement: The core appeal of this toy is its smart interactive movement. This automatic bouncing ball activates immediately upon touch, rolling and bouncing in entirely unpredictable directions. This erratic motion successfully triggers a dog's natural chasing instincts, keeping them thoroughly engaged and entertained for hours, which is incredibly helpful when you are unavailable to play. However, because the movement is so sudden and dynamic, it can occasionally scare more sensitive or easily startled dogs. Chew-Proof and Safe Construction: The durability and structural safety of the ball are highly impressive: *Chew-Proof E-TPU: Crafted with a high-density E-TPU shell, the toy is specifically built to withstand aggressive chewing and rough play from medium to large breeds. It holds up remarkably well against scratches and deep bites for long-lasting use. *Pet-Friendly Materials: The non-toxic, BPA-free material is completely safe and remains gentle on your dog's teeth and gums during fetch or heavy chewing sessions. *Injure-Free Design: The toy is engineered with smooth, rounded edges to prevent any accidental cuts or injuries during high-speed play. Supporting an Active Lifestyle: This toy serves as a fantastic tool for supporting an active lifestyle. It encourages vital daily exercise to help maintain your dog's physical health, significantly reduces boredom, and curbs destructive behaviors like furniture chewing. This makes it an absolute lifesaver for high-energy pups that need a constant physical outlet. Convenient USB Rechargeability: Powering the toy is simple and environmentally friendly. It is equipped with a USB rechargeable battery that delivers up to 8 hours of continuous play on a single charge. It also includes the necessary USB charging cable, ensuring you can quickly plug it in and have it ready for the next play session without constantly buying disposable batteries. Bottom Line: I highly recommend this smart interactive dog toy for owners of high-energy, medium-to-large breeds that need an indestructible, engaging outlet. While it may frighten more timid or anxious dogs due to its unpredictable bouncing, its premium E-TPU durability, great battery life, and excellent exercise value make it a fantastic investment for a healthier, happier pet.
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Reviewed in the United States on May 27, 2026
S
Silverbullet875
Boise, US
★★★★★ 5
Ymswznwe Smart Interactive Dog Toy, Pet Automatic Moving Bouncing Ball, Chew-Proof
Color: Blue, Color: Blue
This toy has been so much fun to watch my dogs interact with. I love the randomness of the movements because it keeps them guessing and keeps the toy interesting instead of becoming predictable after five minutes. They definitely weren’t sure what to think of it at first, but once they figured it out, it became hilarious entertainment. One of my dogs especially likes to hold it in his mouth and just let it vibrate, which cracks me up every time. I think toys like this are great not only for physical activity, but also for mental stimulation and curiosity. It gets them engaged in a different way than a regular ball or chew toy. While I wouldn’t consider my dogs “power chewers,” toys usually do not last long around here, so I was pleasantly surprised by how well this has held up. At the time of this review, it still looks basically brand new, so it is pretty durable. I also really appreciate that it’s rechargeable. I’m glad I’m not constantly going through batteries with a toy like this.
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Reviewed in the United States on May 11, 2026
A
Amazon Customer
Birmingham, US
★★★★★ 2
Interesting Premise
Color: Blue, Color: Blue
It's an interesting premise for a toy -- it has a vibrating gyrator in the middle which turns on randomly for random durations. This then causes the ball to vibrate and roll around the floor. It really needs to be on a hardwood floor to move, though -- when I put it on their dog bed, it vibrates but then doesn't move anywhere. I tried a few times to get my four dogs to interact this this ball toy, but they are clearly not interested.
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Reviewed in the United States on March 20, 2026

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