RF1 Racing Brake Fluid: All Performance, No Hype
Competition Motorsport RF1 Racing Brake Fluid has one of the highest DOT4 dry boiling points (622º F / 328º C) on the market, combined with the lowest price per 500ml among popular racing brake fluid brands. No other racing brake fluid offers the combination of very high boiling point and affordable price that RF1 Racing Brake Fluid does. In fact, RF1 Racing Brake Fluid saves racers and track-day drivers even more with six- and twelve-bottle case discounts. Lowering the cost of flushing your racing brake fluid helps you do it more often, which is the key to maintaining optimum racing brake performance.
Dry Vs. Wet Boiling Point
What's the difference? Let us "boil it down. Dry boiling point is calculated using fresh brake fluid (i.e. from an unopened bottle). Wet boiling point is calculated based on the brake fluid being saturated with water, which occurs naturally over time as water vapor in the air penetrates your flexible brake lines. If you’re racing or driving at track days and only changing your brake fluid every six months (or more), you’re asking for trouble.
The dry boiling point is the most important specification for racers and HPDE / track-day participants who keep their brake fluid fresh. We strongly suggest replacing your brake fluid before every track event, but at least once every three months if you're consistently racing, driving at track days or otherwise going for "spirited" drives in your sports car.
Professional Level Racing Brake Fluid Chemistry
RF1 was manufactured in partnership with the brake fluid supplier for many Formula 1, WEC and other professional racing teams and it performs as such. RF1 Racing Brake Fluid is formulated to maintain consistent viscosity, lubricity, and compressibility at the extreme temperatures and line pressures found in racing, track days, and spirited driving.
CMS’s RF1 Fully Synthetic Racing Brake Fluid is formulated to provide the highest, most reliable performance under racing conditions, where braking systems operate at very high temperatures. RF1 exceeds all DOT 3 & 4 requirements and is compatible with all DOT 3, 4, and 5.1 fluids.
A Comparison of Racing Brake Fluids
Prices are per 500ml. RF1 is available in 12-bottle cases that come out to $19.95 per bottle!
| RF1 RBF | $22.00 | Dry BP = 622º F | Wet BP = 399º F |
| AP Racing Radi-Cal R4 | $40.00 | Dry BP = 644º F | Wet BP = 383º F |
| Motul RBF 700 | $33.00 | Dry BP = 637º F | Wet BP = 401º |
| Stoptech STR-660 | $25.00 | Dry BP = 622º F | Wet BP = 404º F |
| Motul RBF 660 | $27.00 | Dry BP = 617º F | Wet BP = 399º F |
| Castrol SRF | $37.50 | Dry BP = 590º F | Wet BP = 518º F |
| AP Racing Radi-Cal R3 | $30.00 | Dry BP = 617º F | Wet BP = 383º F |
| Brembo LCF 600+ | $24.00 | Dry BP = 601º F | Wet BP = 399º F |
| Redline RL-600 | $20.00 | Dry BP = 600º F | Wet BP = 400º F |
| Motul RBF 600 | $20.00 | Dry BP = 594º F | Wet BP = 421º F |
| Prospeed RS683 | $24.00 | Dry BP = 583º F | Wet BP = 394º F |
| Standard DOT4 fluid | $10.00 | Dry BP = 500º F | Wet BP = 329º F |
CMS RF1 is compatible with all DOT 3, DOT4 and DOT 5.1 brake fluids. RF1 is not compatible with DOT5 or mineral-based brake fluids.
