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AMSOIL Synthetic Shock Therapy Suspension Fluid #5 Light
Shock Therapy Suspension Fluid #5 Light (STL)

Formulated for fade-free dampening and smooth
rebounds in high-performance applications.

1-Quart Bottle
1-Quart Bottles (case of 12)
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
Suspension Fluids have been tested and proven to be superior, balanced products

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
viscosity indices that effectively maintain their viscosities, while their antifoam agents reduce
aeration and foam.

Reduces Friction and Wear
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 SPL Ultra Light
Ohlins Front Fork #5
Race Tech Light
Klotz 5W
Maxima Shock Fluid
RydeFX
Silkolene Pro RSF
Golden Spectro Very Light
Belray Fork 5W
Bilstein Bilmst 3030
Redline Light
SLP Light
PJ1 Fork Oil
Showa SS05
Belray HVI 5W
 
AMSOIL STL #5 Replaces The Following Lubricants:
  • 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.
TYPICAL TECHNICAL PROPERTIES - Revised as of 6/08

AMSOIL SHOCK THERAPY SUSPENSION FLUID
Kinematic Viscosity @ 100°C, cSt (ASTM D445)
4.4
Kinematic Viscosity @ 40°C, cSt (ASTM D445)
15.7
Viscosity Index (ASTM D2270)
210
Pour Point °C (°F) (ASTM D92)
-54 (-60)
Flash Point °C (°F)
175 (347)
Four-Ball Wear Test (ASTM D4172: 40kgf, 150°C, 1800 rpm, 1 hr) Scar
diameter, mm
0.40
Fire Point, °C [°F]
192 [378]
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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