Wilwood EXP Super Hi-Temp 600 Plus Racing Brake Fluid has been specially formulated for racing applications where brake systems consistently operate at very high temperatures. In addition to guarding against vapor lock, EXP Super Hi-Temp 600 Plus Racing Brake Fluid maintains its viscosity and lubricity under extreme temperatures for maintaining brake system reliability and performance. EXP Super Hi-Temp 600 Plus Racing Brake Fluid conforms to, and exceeds U.S. specification FMVSS No. 116 DOT 4. Typical dry boiling point: 594° F (312° C). Typical wet boiling point: 399° F (204 °C). It is true that racing fluids need to have high boiling points. It is also true that fluids need to have low moisture affinity to slow the natural absorption rate of water vapor. But the true test of any fluid is how well it resists aeration and compressibility after it has been heated and pressure cycled a few hundred times. The real test is at the track. EXP has been proven to maintain firm pedal feel and quick response, long after others have failed.