The Original Synthetic Oil
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Shock Therapy Suspension Fluid #10 Medium
Shock Therapy Suspension Fluid #10 Medium (STM)

Formulated for fade-free dampening and smooth rebounds in
high-performance applications.
1-Quart Bottle
1-Quart Bottles (case of 12)
5-Gallon Pail
55-Gallon Drum
PRODUCT DESCRIPTION
AMSOIL Shock Therapy Suspension Fluids are formulated with shear stable synthetic base stocks
with high viscosity indices. The complete additive package reduces foaming, aeration and wear,
while seal conditioners are added to keep seals soft and pliable. AMSOIL Shock Therapy
Suspension Fluids have been tested and proven to be superior, balanced products recommended
for a wide range of temperatures and applications.

Controls Dampening and Rebound
AMSOIL Shock Therapy Suspension Fluids are formulated to make suspension systems more
predictable. The base stocks of AMSOIL Shock Therapy Suspension Fluids have inherently high and
foam.

The constant friction within a shock body decreases suspension performance. AMSOIL Shock
Therapy Suspension Fluid contains friction modifiers to reduce the energy loss caused by friction,
while antiwear agents are added to protect shocks and forks from premature wear.
Spectro SK400 Shock & Fork Oil
Race Tech Medium
Maxima Fork Oil 10
Belray HVI 10W
Ohlins Front Fork Fluid #15
Belray Fork 10W
Spectro Fork Oil 10W
Klotz 10W
Redline Medium
Spectro SPL Very Light
Harley Davisdson Fork Oil Type B
Fox Racing Oil
Harley Davidson Fork Oil Type E
 
AMSOIL STM #10 Replaces The Following Lubricants:
AMSOIL STM #10 Is Recommended For Applications Specifying The Following:

  • Denison HF-0, HF-1, HF-2
  • Lee Norse 100-1
  • Ford M6C-32
  • BF Goodrich 0152 (except PM 500 Series)
  • Racine Variable Vane Pump
  • DIN 51524 Part 2
  • Afnor E 48-603

Recommendations
AMSOIL Shock Therapy Suspension Fluids are recommended for front forks and shocks on
snowmobiles, motocross and cruiser motorcycles, ATVs and other racing and recreational use
vehicles, as well as cars and trucks that require their suspension systems to perform in the most
extreme conditions. It is recommended the fluid be agitated before use.

AMSOIL Shock Therapy Suspension Fluid is available in two different viscosities.

AMSOIL Shock Therapy Suspension Fluid Light #5 (STL) is recommended for, but not limited to,
Showa,® Kayaba,® Bilstein,® RydeFX,® Penske,® WP® forks, RACETECH® (US1) and Custom Axis®
suspension systems. Use Shock Therapy Light #5 where less dampening and quicker rebounds are
desired. It is also the preferred choice for winter use.

AMSOIL Shock Therapy Suspension Fluid Medium #10 (STM) is recommended for, but not limited to,
Ohlin,® FOX,® RACETECH,® (US2), Koni,® WP® shocks and Harley-Davidson® forks that
recommend type “E” or “B” fork oil. Use Shock Therapy Medium #10 where more dampening control
and slower rebounds are desired.

Product Availability
AMSOIL Shock Therapy Suspension Fluids are available in quarts and 5-gallon pails.

AMSOIL SHOCK THERAPY SUSPENSION FLUID
Kinematic Viscosity @ 100°C, cSt (ASTM D445)
7.3
Kinematic Viscosity @ 40°C, cSt (ASTM D445)
32.1
Viscosity Index (ASTM D2270)
205
Pour Point °C (°F) (ASTM D92)
-48 (-54)
Flash Point °C (°F)
202 (396)
Four-Ball Wear Test (ASTM D4172: 40kgf, 150°C, 1800 rpm, 1 hr) Scar
diameter, mm
0.40
Fire Point, °C [°F]
217 (423)
Foam, ml (ASTM D-892) Sequence I, II, III
65/0, 60/0, 65/0
Blender Test (25°C, low speed, 1 min.)
 
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