PRODUCT DESCRIPTION
AMSOIL Series 500 DOT 3 High-Performance Synthetic Brake
Fluid and AMSOIL Series 600 DOT 4
Synthetic Racing Brake Fluid feature pure base stocks
and robust additives that resist boil-off and the effects of
water contamination more effectively than conventional brake
fluids. AMSOIL Synthetic Brake Fluids deliver superior
high-temperature performance in auto/light-truck,
high-performance, racing and powersports applications.
CONTAMINATION
Water contaminates the brake system by seeping through
microscopic pores in flexible brake lines and seals and
through the reservoir fill cap when opened. Once inside, it
quickly works to corrode brake parts, lines and seals,
leading to eventual system failure. AMSOIL Synthetic Brake
Fluids keep water in suspension, slowing its corroding
effects. They lubricate and protect intricate braking
components despite the inevitable water absorption
associated with braking systems, delivering long-lasting
performance.
BOIL-OFF
The extreme pressure and high heat common to braking can
push conventional brake fluid beyond its boiling point,
causing it to vaporize, or boil-off. Even more problematic,
water contamination can drop the boiling point of
conventional fluid below safe standards, accelerating the
rate at which it boils off. This leads to a spongy or
unresponsive feeling in the brake pedal. In contrast, the
unique chemistry behind AMSOIL Synthetic Brake Fluids
increase their boiling point temperatures well beyond
Department of Transportation (DOT) standards even when
contaminated with 3.7 percent water (see chart). They
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 consistent, safe
braking. AMSOIL Series 600 DOT 4 Synthetic Racing Brake
Fluid features a wet equilibrium reflux boiling point (Wet
ERBP) nearly 100°F higher than the DOT minimum, making it
ideal for high-performance cars, motorcycles and vehicles
used for towing.
| |
DOT Minimum
|
AMSOIL
|
DOT3
ERBP*: |
205°C (401°F)
|
274°C (525°F)
|
| Wet ERBP**: |
140°C (284°F)
|
156°C (313°F)
|
DOT4
ERBP*: |
230°C (446°F)
|
304°C (580°F)
|
| Wet ERBP**: |
155°C (311°F)
|
193°C (380°F)
|
*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.
|
Typical Technical
Properties
|
|
AMSOIL Series 500 DOT 3 High
Performance Synthetic Brake Fluid and AMSOIL
Series 600 DOT 4 Racing Synthetic Brake Fluid
|
Equilibrium Reflux Boiling Point
Dry °C (°F)
Wet °C (°F) |
274 (525)
156 (313) |
304 (580)
193 (380) |
Viscosity
-40°C (-40°F), cSt
100°C (212°F), cSt |
1065
2.0 |
1550
2.0 |
| pH |
9.0 |
7.2 |
POWERSPORTS
The aggressive driving conditions and sudden stops common to
some on- and off-road motorcycle and ATV applications can
literally boil conventional brake fluid, leaving behind a
discolored, dirty solution that can promote deposit
formation and corrosion on braking components. Worn brake
fluid also fails to deliver adequate protection against
water ingress common to powersports equipment exposed to the
elements.
The synthetic base stocks and superior additives in
AMSOIL Synthetic Brake Fluids excel in demanding powersports
applications, providing reliable brake lever and pedal
response, corrosion protection and longevity as compared to
conventional brake fluids. AMSOIL Synthetic Brake Fluids are
the product of choice for racing, heavy hauling or leisure
powersports applications.
APPLICATIONS
Consult the AMSOIL
Online Product Applications Guide for application
information. For powersports applications, consult the
owner’s manual to determine the correct DOT classification.
