SKU: 90542210196

Motul RBF660 Racing Brake Fluid

Sale price$44.46 Regular price$49.40
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Motul RBF660 Racing Brake FluidMotul RBF660 Racing Brake Fluid All types of hydraulic brake and clutch actuators requiring non silicone synthetic fluid. Specially designed to resist to extreme temperature generated by racing carbon and ceramic brakes allowing minimizing air entrance for brake cooling. Can be also used with conventional steel discs and clutch systems actuators. Widely exceeds DOT 3, DOT 4 and DOT 5. 1 standards (except for DOT 5. 1 viscosity at 40C). PERFORMANCES

Motul RBF660 Racing Brake Fluid

  • All types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid.
  • Specially designed to resist to extreme temperature generated by racing carbon and ceramic brakes allowing minimizing air entrance for brake cooling.
  • Can be also used with conventional steel discs and clutch systems actuators.
  • Widely exceeds DOT 3, DOT 4 and DOT 5.1 standards (except for DOT 5.1 viscosity at - 40°C).

PERFORMANCES STANDARDS - FMVSS 116 DOT 4 / SAE J1703 Extreme thermal resistance and stability: 

  • MOTUL RBF 660 FACTORY LINE very high boiling point (328°C / 622°F) is superior to conventional brake fluids DOT 5.1 (260°C / 500°F mini) and DOT 4 (230°C / 446°F mini), and therefore enables effective braking even in extreme conditions.
  • Provides better aerodynamic performance by reducing air entrance for brake cooling on cars.

Efficient when rainy: 

  • MOTUL RBF 660 FACTORY LINE very high wet boiling point (204°C / 399°F) is superior to conventional brake fluids DOT 5.1 non-silicone base (180°C / 356°F mini) and DOT 4 (155°C / 311°F mini), and therefore enables to keep efficient braking in wet conditions.
  • 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 3% of water.

RECOMMENDATIONS 


  • Avoid mixing with polyglycol based brake fluids.
  • Do not mix with silicone (DOT 5 silicone base) or mineral base fluids (LHM).
  • Store brake fluid in its original container, tightly closed to prevent moisture absorption.
  • Aggressive chemical product if contact with hands, paint or varnish.
  • If skin contact, rinse thoroughly with water.

PROPERTIES

100% Synthetic fluid, polyglycol bases. 

Color Amber

Dry boiling point 328 °C / 622 °F Wet boiling point 204 °C / 399 °F 

Viscosity at -40 °C (-40 °F) 1698 mm²/s 

Viscosity at 100 °C (212 °F) 2.59 mm²/s

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: 90542210196

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4th Cav Trooper
Fort Morgan, US
★★★★★ 5
Nice material, holds collar shape well.
Color: Wine Red, Navy Blue, Black, Size: Medium
Good value for the money. You can machine wash and dry on low heat, in my opinion. Laying flat is too much of a pain.
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Reviewed in the United States on January 30, 2026
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Kathy McCann
San Leandro, US
★★★★★ 5
Great tshirts!
Color: Light Gray, Dark Gray, Black, Size: X-Large
Husband loved these tshirts.
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Reviewed in the United States on February 18, 2026
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Gadget Worm
Houston, US
★★★★★ 2
Not made from the most comfortable fabric
Color: White, Light Gray, Black, Size: Large
It is not the most comfortable fabric which makes it not suitable for summer clothing. Also, the fitting of the neck doesn’t look good since material is not wrinkle free
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Reviewed in the United States on August 4, 2025
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yosvel espinosa
Pawtucket, US
★★★★★ 4
Excellent Mock Neck T-Shirts
Color: Wine Red, Navy Blue, Black, Size: Medium
 As a man who appreciates comfort and style, I can confidently say these August Alley mock neck t-shirts are a solid choice. I'm always looking for versatile basics, and these fit the bill perfectly. The cotton material feels great against the skin, and they've held their shape well after a few washes. I appreciate the slim fit; it looks modern without being too tight. Whether I'm wearing them casually or layering them under a jacket, they always look sharp. For the price, getting a 3-pack of these quality shirts is a fantastic deal. Highly recommend them for any guy looking to upgrade his basic tee collection.
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Reviewed in the United States on June 24, 2025
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Dave Roberts
Cuba, US
★★★★★ 5
Well worth the price.
Great fit and quality feel.
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Reviewed in the United States on November 3, 2025

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