𝐅𝐢𝐫𝐦 𝐏𝐞𝐝𝐚𝐥 𝐅𝐞𝐞𝐥
The extreme pressure and high heat common to brake systems can push brake fluid beyond its boiling point, causing it to vaporize or “boil-off.” Water contamination can accelerate the process. This leads to a spongy or unresponsive feeling in the brake pedal (vapor lock). In contrast, the unique chemistry behind AMSOIL synthetic brake fluids increases boiling points well beyond DOT standards, even when contaminated with 3.7 percent water. AMSOIL Brake Fluids maintain a stable viscosity over a wide temperature range and flow easily at the high pressures generated in today’s automotive brake systems to deliver solid, reliable braking. A nitrogen blanket is added to each bottle during manufacturing to purge moisture and ensure the maximum level of performance.

𝐔𝐥𝐭𝐫𝐚-𝐇𝐢𝐠𝐡 𝐁𝐨𝐢𝐥𝐢𝐧𝐠 𝐏𝐨𝐢𝐧𝐭𝐬
AMSOIL DOMINATOR® DOT 4 Synthetic Racing Brake Fluid features ultra-high boiling-points of 𝟒𝟏𝟎º𝐅 (𝐰𝐞𝐭) and 𝟓𝟖𝟎º𝐅 (𝐝𝐫𝐲). It maintains a low compressibility during the most extreme racing conditions.

*Dry equilibrium reflux boiling point (ERBP)–the boiling point of new, freshly opened brake fluid.

**Wet ERBP–the boiling point of brake fluid having absorbed 3.7 percent water. Only 3.7 percent water contamination is often sufficient to reduce a DOT 3 fluid’s boiling point below the DOT minimum.

𝐀𝐏𝐏𝐋𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒
Use AMSOIL DOMINATOR® DOT 4 Synthetic Racing Brake Fluid in racing applications that require a DOT 4 product. Change fluid once a year for maximum performance.