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

Control friction, heat, wear, foaming and scuffing in suspension components. High viscosity index and shear stability performance control shock fade and inconsistent dampening in temperature extremes.

See Pricing Information or Place an Order

Package sizes include:

    1-Quart Bottle
    1-Quart Bottles (case of 12)
    5-Gallon Pail
    55-Gallon Drum

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 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.

AMSOIL STL #5 Replaces The Following Lubricants:
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 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.

TYPICAL TECHNICAL PROPERTIES
AMSOIL SHOCK THERAPY SUSPENSION FLUID

STL

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)

4.4

Kinematic Viscosity @ 40°C, cSt (ASTM D-445)

15.7

Viscosity Index (ASTM D-2270)

210

Pour Point, °C [°F] (ASTM D97)

-54 [-60]

Flash Point, °C [°F]

175 [347]

Fire Point, °C [°F]

192 [378]

Four Ball Wear Test (ASTM D-4172: 40kg, 75°C, 1200 rpm, 1 hr) Scar Diameter, mm

0.40

Foam, ml (ASTM D-892) Sequence I, II, III

65/0, 60/0, 65/0

Blender Test (25°C, low speed, 1 min.)

2.5 mins to settle,
8% foam

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