The boiling point indicates the temperature at which brake fluid begins to turn into gas. This temperature range of 260 to 300 °C is considered high and refers to the so-called 'dry boiling point', which is the boiling temperature of new, unused fluid. If the temperature in the brake system exceeds the fluid's boiling point, gas bubbles will form within it. Unlike fluid, gas is compressible, which leads to the brake pedal sinking and a significant reduction in braking performance. This phenomenon is called 'vapor lock'. Brake fluids with such a high boiling point are intended for high-performance vehicles or for driving in demanding conditions where intense brake heating occurs. Over time, the fluid absorbs atmospheric moisture, which lowers its boiling point.