Shock Therapy Suspension Fluid
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Formulated for Fade-Free Dampening and
Smooth Rebounds in High Performance Applications
Product Codes: STL, STM
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Showa
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Kayaba
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Bilstein
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RydeFX Penske
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WP
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RACETECH (US1) AND (US2)
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FOX
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Koni
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Harley-Davidson
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PRODUCT DESCRIPTION
AMSOIL Shock Therapy Suspension Fluid is formulated for maximum stability and
high performance. High quality synthetic basestocks and high viscosity indices
provide unparalleled shear stability. AMSOIL Shock Therapy Suspension Fluid
controls friction and heat, reduces wear and scuffing and prevents fade more
effective than conventional fluids can. AMSOIL Shock Therapy Suspension Fluid
has been tested in the lab and against the competition and proven to be of the
highest quality at a wide range of temperatures and applications.
Controls Dampening and Rebound
With AMSOIL Shock Therapy Suspension Fluid,
viscosity remains constant and aeration and foam are greatly reduced,
significantly limiting shock fade and inconsistent dampening. AMSOIL Shock
Therapy Suspension Fluid (STL & STM) is formulated for fade-free dampening
and smooth rebounds in many racing and recreational applications, reducing rider
fatigue and enabling the driver to ride longer and harder while keeping focused
on the terrain ahead.
Reduces Friction and Wear
Constant friction in a shock body decreases
suspension performance while causing scuffing and wear on the inner
walls. AMSOIL Shock Therapy Suspension Fluid contains friction
modifiers to reduce frictional energy loss and heat buildup. Anti-wear
agents protect against premature scuffing and wear, while maintaining
proper suspension absorption.
Temperature and Performance
AMSOIL Shock Therapy Suspension Fluid features high pour and flash
points, maintaining its ability to provide superior protection in both
high and low temperature extremes. It is highly resistant to volatility,
avoiding breakdown and resisting the buildup of sludge and
deposits.
Maintains Seal Pliability
AMSOIL Shock Therapy Suspension Fluid includes seal conditioners,
keeping seals soft and pliable and extending their service life.
Performance Features
- Controls Friction and Heat
- Reduces Wear and Scuffing
- Effectively Prevents Fade
- Smooth Rebounds
- High Pour and Flash Points
- Keeps Seals Soft and Pliable
ASTM
D-892 BLENDER TEST |
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Time for Setting (min) |
% Volume Change |
AMSOIL STL |
65/0,60/0,65/0 |
2.5 |
8.00% |
AMSOIL STM |
65/0,60/0,65/0 |
2.5 |
8.00% |
Fox Shock Oil |
120/0,40/0,50/0 |
2.0 |
10.00% |
Ohlins High Performance Suspension Fluid |
130/0,40/0,130/0 |
2.5 |
9.00% |
Applications & Recommendations
AMSOIL Shock Therapy Suspension Fluid is recommended for front forks
and shocks in snowmobiles, motocross and cruiser motorcycles, ATV's and
other racing and recreational use vehicles. Two different formulations
are available: The lightweight grade (STL) is recommended, but not
limited to, Showa, Kayaba, Bilstein, RydeFX, Penske, WP forks, RACETECH
(US1) and Custom Axis suspension systems that demand quick rebounds
under extreme hot and cold weather applications, while the medium grade
(STM) can be used in Ohlin, FOX, RACETECH (US2), Koni, WP shocks and
Harley-Davidson forks that recommend type "E" or "B"
fork oils, as well as other applications that require more dampening and
slower rebounds. Refer to the owner's manual for individual capacities, proper
disassembly and further recommendations. Owner's manuals may refer to
weights when recommending suspension oil. These weight numbers are
arbitrary because no industry standard exists for classifying suspension
oil. The numbers can range from 2.5 to 30, depending on the
manufacturer. AMSOIL STL correlates closely to a 5 weight, while AMSOIL
STM is close to a 10 weight.
Compatibility
AMSOIL STL and STM can be mixed together based
on individual requirements and applications, and they are compatible
with most other suspension fluids.
Product Availability
AMSOIL Shock Therapy Suspension Fluids are available in quarts and
5-gallon pails.
TYPICAL TECHNICAL
PROPERTIES
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AMSOIL SHOCK THERAPY SUSPENSION FLUID |
STL |
STM |
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) |
4.38 |
7.33 |
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) |
15.68 |
32.08 |
Viscosity Index (ASTM D-2270) |
210 |
205 |
Pour Point, °C (ASTM D-92) |
-54 |
-48 |
Flash Point, °C [°F] |
175 [347] |
202 [396] |
Fire Point, °C [°F] |
192 [378] |
217 [423] |
Four Ball Wear Test (ASTM D-4172: 40kg, 75°C, 1200
rpm, 1 hr) Scar Diameter, mm |
0.40 |
0.40 |
Foam, ml (ASTM D-892) Sequence I, II, III |
65/0, 60/0, 65/0 |
65/0, 60/0, 65/0 |
Blender Test (25°C, low speed, 1 min.) |
2.5 mins to settle, 8% foam |
2.5 mins to settle, 8% foam |
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