
CMS Performance
CMS Performance RF1 Racing Brake Fluid (500 ml)
from $21.95
CMS Performance RF1 DOT4 Racing Brake Fluid
Real Life 622º Boiling Point Without the Real High Price
RF1 Racing Brake Fluid from CMS Performance is a fully-synthetic DOT4 brake fluid formulated to provide extraordinary performance under the most demanding high-temperature racing and track-day conditions. With a dry boiling point of 622º F / 328º C, RF1 exceeds all DOT 3 & DOT 4 requirements and is compatible with all DOT 3, DOT 4, and DOT 5.1 fluids.
Note: RF1, like all DOT 4 brake fluids, is not compatible with DOT 5 silicone-based or any mineral-based brake fluids.
On the race track, there is perhaps no single safety system more important than your brakes. No single part of that system is more critical than brake fluid, given the extraordinarily high temperatures it operates under. At CMS Performance, we got tired of (and a little nervous) using "racing" brake fluid at the race track that didn't live up to its claimed performance when things got hot. We found more than a few brands whose product was all hype and not high performance.
No Hype. All Performance. No Kidding.
So we did something about it. CMS Performance RF1 is manufactured in partnership with Orthene, maker of the also-excellent Halo P1 racing brake fluid and a brake fluid supplier to many racing teams in Formula 1, WEC, and other professional series. RF1 was formulated to maintain consistent viscosity, lubricity, and compressibility at the extreme system temperatures and line pressures found in racing and track days.
The bottom line is this: you can spend a lot more on brake fluid, but it's hard to find higher-performance than RF1 Racing Brake Fluid.
CMS Performance RF1 Racing Brake Fluid Details:
Manufacturer: CMS Performance
Manufacturer part no.: CMSRF1
Typical dry boiling point: 622º F / 328º C
Typical wet boiling point: 399º F / 204º C
Exceeds DOT 3 & DOT 4 standards
Bottle size: 500 ml (16.9 fl. oz.)
Click Here for Product MSDS Sheet
A Word About Flushing Brake Fluid
All brake fluid degrades over time (not mileage), attracting water as it ages, which, at high brake temperatures, can lead to fluid boil and brake fade or failure. That's why the "wet" (aged) boiling point of any brake fluid is substantially lower than the "dry" (new) boiling point.
To maintain maximum braking performance, Competition Motorsport strongly suggests replacing your brake fluid before every track event, but at least every three months if you're consistently racing and/or driving at track days. It's cheap insurance against learning about brake fade the hard way!

Orthene
HALO P1 High Performance Brake Fluid (590 ml)
$68.00
HALO P1 High Performance Brake Fluid
The World's Most Advanced Racing Brake Fluid
Imagine you're on the race track, hitting the entry to a corner. Your foot hammers down on the brake, and you feel... absolute perfection. That's Halo P1 for you. Developed with Fade Resistant Technology, this specialist brake fluid is the secret sauce for top-tier motorsport enthusiasts worldwide.
Why? Because when you're tearing up the track, the last thing you want is a mushy pedal feel. Halo P1 delivers a low and stable compressibility profile over an extended temperature range, not to mention a crazy-high dry boiling point of 341º C (646º F). All of this is to ensure your brake pedal feel remains as strong and consistent as your lap times.Sold in 590 ml (20 fl. oz.) bottles.
Features & Benefits That'll Make You Weep Tears of Joy
Fade Resistant Technology: Keeps your pedal feel consistent, lap after lap, so you can focus on nailing those corners.
Pure Methyl Borate Ester Base: The purity level here is so high, it's like the distilled essence of speed itself, ensuring extreme resistance to compression, even when things get hot (and we mean really hot).
World-Beating Dry Boiling Point: At 341° C (646° F), it's like this fluid laughed in the face of boiling points and set a new standard.
Low Viscosity & High Lubricity: Because your brake system deserves to be as smooth as your driving skills.
What Makes Halo P1 The Secret Weapon?
While other brake fluids are off playing checkers, Halo P1 is mastering chess. It's not just another methyl glycol borate ester brake fluid; it's a revolution in braking performance. With its unique proprietary manufacturing process, it achieves the highest levels of purity and the lowest compressibility possible, remaining constant over a wide temperature range. This is the highest boiling point of any racing brake fluid on the market, folks. And the lubricity? Off the charts, especially at high temperatures.
FAQs That'll Clear the Air
Before you rush off to convert your entire garage to a Halo P1 shrine, let's tackle some of those burning questions you might have:
Can I use Halo P1 in my daily driver? As much as we love the enthusiasm, Halo P1 is a race-only formula. It's like putting a rocket booster on a bicycle – thrilling, but not recommended.
How often should I change my brake fluid with Halo P1? Regular maintenance is key in racing. Check with your team or mechanic, but before every major race is a good rule of thumb.
The Call to Action You've Been Waiting For
So, are you ready to elevate your racing game to legendary status? To feel the rush of confidence as you brake later and harder, knowing your brake fluid won't let you down? It's time to switch to Halo P1. Your podium awaits.

AP Racing
AP Racing Radi-CAL R4 Racing Brake Fluid (500 ml)
$39.25
AP Racing Radi-CAL R4 Racing Brake Fluid
Among the Highest Dry Boilings Point On The Market Today
AP Racing Radi-CAL R4 racing brake fluid has an ultra-high typical dry boiling point, at 644º F / 340º C. Radi-CAL R4 racing brake fluid has been designed to perform better than any other product at the extremes of heavy-duty braking in top levels of professional racing.
AP Racing Radi-CAL R4 has outstanding resistance to vapor lock and pedal fade under the most exacting conditions. A higher vapor lock point means a firmer brake pedal at the extremes of brake temperatures. Enhanced lubricity means R4 is a better lubricant than other market-leading racing brake fluids. This helps extend the life of the metal moving parts in your brake system while increasing system efficiency.
Radi-CAL R4 can be mixed with other DOT 3 and DOT 4 racing brake fluid, although for maximum performance your braking system should be thoroughly purged with R4 fluid.
AP Racing Radi-Cal Pro R4 Brake Fluid Details:
Manufacturer: AP Racing
Manufacturer part number: AP-CP7005
DOT rating: DOT 4
Dry Boiling Point: 644º F / 340º C
Wet Boiling Point: 383º F / 195º C
Bottle Size: 500 ml (16.9 fl. oz.)

Castrol
Castrol React SRF Synthetic Racing Brake Fluid (1000 ml)
$74.95
Castrol React SRF Racing Brake Fluid
Ultra-High Wet Boiling Point Makes Castrol SRF A Standout
Castrol React SRF Racing Brake Fluid is an ultra-high performance brake fluid popular with many of the highest performing auto racing teams around the world. The key to Castrol SRF brake fluid's performance is its silicon-ester technology. Not only is it less hygroscopic (i.e., it absorbs less water) than typical glycol-based brake fluids, Castrol SRF also reacts chemically with any absorbed water to further reduce its adverse effects on high-temperature braking performance.
The result is an almost unheard of 518° F (270° C) wet boiling point, more than 100° F higher than most other racing brake fluids!
Exceeds SAE 1703, ISO 4925, JIS K2233, FMVSS No. 116 DOT3 and DOT 4 specifications.
Note: Castrol SRF is not a silicone-based brake fluid (i.e., DOT 5) and is compatible with most factory brake systems and fluids, including DOT 3 and DOT 4 fluids. Always follow vehicle manufacturer's recommendations when adding brake fluid.
Castrol React SRF Racing Brake Fluid Typical Properties:
Dry Boiling Point: 590°F (310°C)
Wet Boiling Point: 518°F (270°C)
Superior anti-vapor lock properties
One-liter (1000ml) bottle

Motul
Motul RBF 660 Racing Brake Fluid (500 ml)
$31.12
Motul RBF 660 Racing Brake Fluid
Motul RBF 660 Brake Fluid is 100% synthetic DOT 4 racing brake fluid for use in extreme high temperature & racing applications. It is suitable for all types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid. Widely exceeds the DOT 3, DOT4 and DOT 5.1 standards (except for DOT 5.1 viscosity at - 40°C).
Extreme Thermal Resistance and Stability
Motul RBF 660 has a very high dry boiling point (325°C / 617°F), superior to conventional DOT 4, DOT 5, and DOT 5.1 brake fluids. Motul RBF 660 enables effective high-speed braking even under extreme temperature conditions.
Efficient When It Rains
The high wet boiling point (204°C / 400°F) of Motul RBF 660 far exceeds the requirements of DOT 3, DOT 4, and DOT 5.1, enabling excellent braking efficiency while driving or racing in the rain. This also reduces the risk of “vapor lock”.
Note: do not mix synthetic DOT 4 brake fluid such as Motul RBF 660 with DOT 5 silicone-based or any mineral-based brake fluids.

Motul
Motul RBF 600 Racing Brake Fluid (500 ml)
$19.95
Motul RBF 600 Racing Brake Fluid
Motul RBF 600 is a 100% synthetic high-temperature DOT 4 brake fluid for hydraulic-actuated brake and clutch systems. RBF 600 is specifically designed to resist the high temperatures of steel or carbon-composite racing brakes and clutch systems.
Motul RBF 600 far exceeds the standards of ordinary DOT 3 and DOT 4 brake fluid. The RBF 600 container is filled with nitrogen to increase shelf life and eliminate contamination while factory sealed. Its extremely high dry- and wet-boiling points help prevent vapor lock and brake fade during hard use.
Extreme Thermal Resistance and Stability
The elevated dry boiling point of RBF 600 (593° F / 312° C) enables effective braking even under extreme conditions like racing competition, mountain driving, etc.
Very Effective in Rainy Conditions
The high wet boiling point (420°F / 216° C) of Motul RBF 600 is superior to conventional brake fluids, providing particularly efficient braking in rain while reducing the risk of vapor lock.
Note: do not mix DOT 4 brake fluid like Motul RBF 600 with DOT 5 silicone-based or conventional mineral-based brake fluids.

AP Racing
AP Racing Radi-CAL R3 Racing Brake Fluid (500 ml)
$29.95
AP Racing Radi-CAL R3 Racing Brake Fluid
Designed for the Top Levels of Motorsports
AP Radi-CAL R3 Racing Brake Fluid was developed for use in very-high-temperature racing conditions. It conforms to or exceeds FMVSS 116, DOT 4, SAE J1703 and J1704 standards. AP Racing Radi-CAL R3 Racing Brake Fluid is one of the most popular brake fluids at the highest levels of professional auto and motorcycle racing. It was specifically developed for coping with extraordinary temperatures, such as those encountered when running a carbon/carbon composite brake system.
To ensure that the fluid stays fresh, AP brake fluids are furnished in 500 ml (16.9 oz) easy-pour plastic bottles with double-sealed caps. When switching your fluid to AP Racing Radi-CAL R3, we recommend purging all of the old fluid from the system. Three to four bottles of fluid are enough to completely replace existing brake fluid and still have enough left over for a bleed at the track to remove any remaining air bubbles.
AP Racing Radi-CAL R3 Brake Fluid Details:
Manufacturer: AP Racing
Manufacturer part number: AP-CP5660
UPC: 48238040081
DOT Rating: DOT 4
Dry Boiling Point: 617º F / 325º C
Wet Boiling Point: 383º F / 195º C
Compatible with other DOT 4 fluids: yes
Bottle size: 500 ml (16.9 fl oz)

AP Racing
AP Racing Radi-CAL R2 Racing Brake Fluid (500 ml)
$19.95
AP Racing Radi-CAL R2 Racing Brake Fluid
Outstanding Performance in High-Heat Braking Applications
AP Radi-CAL R2 racing brake fluid was developed for the extreme abuse of heavy race cars competing in endurance events. AP Racing Radi-CAL R2 fluid has a dry boiling point of 593º F (312º C), and was developed for racing applications where high brake temperatures are common (e.g., when using carbon discs) and very high temperature brake fluid performance is required.
Before using AP Racing Radi-CAL R2 fluid, any existing brake fluid should be drained completely from the car's brake system. The system should be thoroughly purged with new R2 and can then be filled completely with fresh R2 fluid.
AP Racing Radi-Cal R2 Brake Fluid Details:
Manufacturer: AP Racing
Manufacturer part number: AP-CP5600
R2 fluid conforms to and exceeds DOT4 specifications, but should not be used with components made from magnesium
Dry Boiling Point: 593º F / 312º C
Wet Boiling Point: 383º F / 195º C
Bottle Size: 500 ml (16.9 fl. oz.)

AP Racing
AP Racing Radi-CAL R1 Racing Brake Fluid (500 ml)
$17.95
AP Racing Radi-CAL R1 Racing Brake Fluid
Brake Fluid Suitable for All Forms of Motorsport
AP Racing Radi-CAL R1 DOT 4 racing brake fluid was developed for road cars being used in events such as autocross and track days, where drivers need brake fluid with a higher boiling point than that of standard OEM brake fluid.
While AP Racing Radi-CAL R1 fluid has the lowest dry boiling point of AP Racing's racing brake fluid lineup at 516º F (269º C), it far exceeds that of ordinary DOT 4 brake fluid. It was developed for applications needing more heat resistance than typical OEM brake fluid.
AP Racing Radi-CAL R1 Brake Fluid Details:
Manufacturer: AP Racing
Conforms to FMVSS 116 DOT3 specification
Manufacturer part number: AP-CP7551
New Dry Boiling Point: 516º F / 269º C
Wet Boiling Point: 284º F / 140º C
Bottle Size: 500 ml (16.9 fl. oz.)