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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1604848547

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 2018 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
SP
Cuba, US
★★★★★ 5
Buy it
Color: Newport Blue, Size: 32W x 30L
Awesome. Bought hoodies and pants and they are all nice. Pants fit true to size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
C
C.M.P.
Charlottesville, US
★★★★★ 5
Great Looking Lightweight Golf Pants
Color: Khaki, Size: 38W x 32L, Color: Khaki, Size: 38W x 32L
This is a great looking pair of lightweight golf pants from M MAELREG. They’re tailored from a Polyester and Spandex blend (94% - 6%) in an attractive weave. I selected the Khaki version and the pants are lightweight, very comfortable and fit true to size. They have a button and zipper fly closure with a silicone ‘gripper’ on the inside waistband, which helps hold the pants in place if you decide not to wear a belt. But if you do wear a belt, the pants have 6 total belt loops, including a pair at the rear (often not found on many pants today). They have 2 front pockets and a hidden pocket with a zipper closure on the right side. The 2 back pockets are stitched shut. Since I rarely use back pockets on any pants or jeans that I wear, that’s not an issue for me. But if you do use them, you’ll need to cut them open yourself. (I would suggest carefully using an X-Acto type knife.) These versatile pants can be worn dressed up for business attire or down for leisure. (In other words, you don’t have to be a golfer to wear them. LOL!) And the quality, fit and pricing of the pants are comparable to many of the top national brands like Nike, Callaway and PGA Tour.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
D
Dr. Jeffrey Horelick
Charlottesville, US
★★★★★ 5
Sharp Style and All-Day Comfort on and Off Course
Color: Iron Grey, Size: 32W x 32L, Color: Iron Grey, Size: 32W x 32L
I have worn a lot of golf and casual pants over the years, and these MAELREG pants truly impressed me from the moment I put them on. The fit is tailored without feeling restrictive, and the lightweight stretch fabric moves comfortably whether I’m walking around the lake with my Labrador, spending time with family, or heading out for dinner. They have a clean, polished appearance that works just as well for business casual settings as they do for golf outings. What I appreciate most is how comfortable they stay throughout the day. The moisture-wicking and quick-dry material kept me cool in the Florida heat, and the water-resistant finish handled light splashes and unexpected weather without any problem. The waistband stays secure and comfortable, and the overall fit gives a sharp, athletic look without being too tight. The pocket design is also very practical. I like having the zipper pocket for valuables while still getting plenty of room in the front and back pockets for everyday essentials. The fabric feels durable yet soft, and the quality is better than I expected for the price. These pants have quickly become one of my favorite pairs because they combine comfort, flexibility, and a refined appearance so well. MAELREG delivered a stylish, well-made product that looks great and performs even better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
N
NW
Birmingham, US
★★★★★ 4
Golf pants
Color: Iron Grey, Size: 36W x 34L, Color: Iron Grey, Size: 36W x 34L
For a generic pair of golf pants, these are actually quite good, though the fit isn't entirely perfect. The overall quality of the material surprised me; it feels durable, has a nice stretch to it, and looks good enough for the course or a casual Friday. The length was also spot-on right out of the package. However, they felt slightly small in the waist. At an okay price point, they are a solid budget option. I can’t speak for longevity yet, but they seem fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
K
kmeis
Chelsea, US
★★★★★ 5
Excellent golf ⛳️ pants!!!
Color: Dark Charcoal, Size: 34W x 34L, Color: Dark Charcoal, Size: 34W x 34L
I bought these pants primarily for golf, but they've quickly become one of my go-to pairs for everyday wear as well. The fabric is lightweight, breathable, and has just the right amount of stretch to stay comfortable throughout the day. I also like that they shed light moisture and dry quickly. The fit is excellent. The straight-leg design looks clean and modern without being too slim or too baggy. The elastic waistband and silicone grip help keep my shirt tucked in during a round of golf, which is a nice touch. The pockets are practical and deep enough for a phone, wallet, and other essentials. Just note that the back pockets come stitched closed and need to be opened before use. I've worn these for golf, travel, and even casual office days, and they work well in all situations. They look dressy enough to pass as business casual while still feeling like athletic pants. Overall, a great combination of comfort, style, and versatility for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026

recommand products