Ultra Lite Brakes Hot Fluid is an extreme service racing brake fluid. This high temp brake fluid has a 600 degree plus dry boiling point which makes it ideal for severe braking conditions. Hot Fluid is a non-silicone base fluid that will not turn black like most competitive brake fluids. The fluid also has special additives that aid in lubricating and gauling. Guaranteed "O" ring friendly.
Brake fluid has two seperate ratings, dry and wet boiling points. DOT 3 ratings are 401 degrees dry and 284 degrees wet, while DOT 4 is 446 degrees and 331 degrees respectively. The instant you open a can of brake fluid it starts absorbing moisture from the air, and 3% moisture will take DOT 3 fluid below 284 degrees. DOT 5 fluid is synthetic and gives you a spongy pedal. We don't recommend it! (Use DOT 4)
We have all seen red hot rotors or smelled hot brakes - this tells you that your fluid has boiled and pulled in moisture. Remember that water boils at 212 degrees and when it does, it expands and vapor-locks. This leaves you with no moisture. That's why Indy cars change the brake fluid every time they go on the track.
- Use only the highest rated DOT 4 fluid
- Run a fresh can of fluid through the system a few times a year
- If you open a new can of fluid, use it or throw it away
- Never mix fluid of different ratings
- Get yourself a brake bleeder and use it often