Motul RBF 600 Factory Line DOT 4 Racing Brake Fluid is engineered to deliver consistent braking performance under the most extreme conditions. Formulated for hydraulically actuated brake and clutch systems, RBF 600 is ideal for racing applications with carbon, steel, or high-performance braking systems. Whether you’re tracking your Toyota GR86, Subaru BRZ, or other performance vehicle, Motul RBF 600 provides superior fade resistance, reliable pedal feel, and protection against vapor lock.

Key Features & Benefits

Racing Performance – Designed to withstand extreme temperatures from high-performance brake systems
High Dry Boiling Point – 312°C (593°F) for maximum fade resistance under hard braking
High Wet Boiling Point – 205°C (401°F) for reliability in humid conditions and extended use
Versatile Application – Compatible with DOT 4 systems and suitable for both racing and street use
Track-Tested Formula – Used in competitive motorsports for consistent performance
Exceeds Standards – Surpasses DOT 3 & DOT 5.1 specifications (except viscosity at -40°C / -40°F)

Technical Specifications

Click to View Fluid Specs

Type: Non-silicone synthetic brake fluid
Dry Boiling Point: 312°C / 593°F
Wet Boiling Point: 205°C / 401°F
Standards: Exceeds DOT 3 & DOT 5.1 (except viscosity at -40°C / -40°F)
Size: 0.5 Liter Bottle
Applications: Racing, track days, spirited driving, daily performance use

Motul RBF 600 vs RBF 660 – Which Racing Brake Fluid is Right for You?

Motul RBF 600 and RBF 660 are two of the most popular DOT 4 racing brake fluids on the market. Both are designed for high-performance driving, track days, and motorsports. The main difference comes down to boiling points and extreme temperature resistance, which can determine whether RBF 600 or RBF 660 is the better fit for your Toyota GR86, Subaru BRZ, or other performance vehicle.

Side-by-Side Comparison

Spec	Motul RBF 600	Motul RBF 660
Dry Boiling Point	312°C / 593°F	325°C / 617°F
Wet Boiling Point	205°C / 401°F	204°C / 399°F
Best For	Track days, spirited street driving, racing with steel brakes	Endurance racing, carbon/ceramic brakes, extreme high-temp racing
DOT Rating	DOT 4 (Exceeds DOT 3 & DOT 5.1)	DOT 4 (Exceeds DOT 3 & DOT 5.1)
Viscosity at -40°C	Does not meet DOT 5.1 viscosity spec	Does not meet DOT 5.1 viscosity spec
Container Size	0.5 Liter	0.5 Liter

Which Should You Choose?

Motul RBF 600 is the go-to option for most drivers, delivering outstanding performance for track days and aggressive driving with a slightly lower price point. It’s more than capable for GR86/BRZ owners running steel rotors and occasional track sessions.

Motul RBF 660 is designed for extreme conditions — endurance racing, repeated heavy braking, or carbon/ceramic setups. If you regularly push your car at the limit on track or in competition, the higher dry boiling point provides extra safety margin against brake fade.

Summary

Choose RBF 600 for: track days, street performance, and value
Choose RBF 660 for: endurance racing, carbon/ceramic brakes, and maximum fade resistance

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