Brake Fluid
High-Performance Brake Fluid Essentials
Standard brake fluids won’t cut it in racing. Extreme temperatures demand a fluid with a high Dry Boiling Point to prevent boiling and low compressibility for a firm pedal feel.
- Dry Boiling Point: The max temp before fresh fluid boils—DOT 3 fluids can reach up to 572°F.
- Wet Boiling Point: After absorbing moisture, the boiling point drops—DOT 3 requires at least 284°F.
Moisture sneaks in through condensation, humidity, and washing. Glycol-based DOT 3 & 4 fluids absorb moisture, lowering performance over time.
Avoid DOT 5 fluid in racing—it doesn’t absorb moisture, leading to water pooling in calipers. At 212°F, that water boils, causing vapor lock and brake failure. DOT 5 also aerates easily, making the pedal feel spongy.
Best Practices
- Never mix different DOT fluids.
- Fresh fluid contaminates instantly—flush the system completely.
- Use the highest Dry Boiling Point fluid available and flush regularly, especially after extreme heat cycles.
Stay ahead of brake fade—choose the right fluid and keep it fresh.
⚠️ CALIFORNIA PROP 65 WARNING:
Apparently, owning cool car parts might give you cancer—if you live in California, and you decide to eat them. This product contains stuff the State of California says could cause cancer, birth defects, or “other reproductive harm.” So maybe don’t chew on it. For the full horror story, visit www.P65Warnings.ca.gov