AMSOIL Shock Therapy #10 Medium Suspension Fluid

AMSOIL Shock Therapy® #10 Medium Suspension Fluid

Developed for those who demand top performance from their suspension systems. Ideal for circle-track racing applications, cars, trucks, snowmobiles, ATVs, UTVs and motorcycles. To cross-reference against your current product, visit shock fluid cross reference.

See the product data sheet for AMSOIL Shock Therapy® #10 Medium Suspension Fluid details.

CONTROLS DAMPING & REBOUNDS

• Formulated to make suspension systems more predictable.
• High-viscosity-index base oils effectively maintain viscosity for maximum performance.
• Anti-foam agents reduce aeration and foam to promote predictable suspension feel.

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REDUCES FRICTION & WEAR

• Contains friction modifiers to reduce energy loss due to friction for optimum efficiency.
• Formulated with anti-wear agents that protect shocks and forks from premature wear for long life.

See the product data sheet for full details.

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What Shock Therapy #10 Is Designed To Do

Medium-Weight Fluid For More Damping

This is the medium viscosity fluid in the Shock Therapy line. Compared with a light #5 fluid, #10:

• Delivers stronger compression damping
• Slows rebound for better chassis control
• Helps heavier machines stay up in the stroke
• Reduces wallow and “pogo” behavior at speed

If your suspension feels loose or blows through its travel too easily, moving to a medium fluid like Shock Therapy #10 is often the fix.

Built For Serious Suspension Systems

Use Shock Therapy #10 in high-quality shocks and forks on:

• Snowmobiles and dirt bikes
• Street and track motorcycles
• ATVs and UTVs
• Performance cars and trucks

It works well wherever a #10 or “medium” suspension fluid is specified and a firmer, more stable ride is desired.

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Stable Performance Across Changing Temperatures

High Viscosity Index To Fight Fade

Suspension fluid heats up quickly when you ride or race hard. Many oils thin out as they get hot, which changes damping and makes the suspension feel inconsistent.

Shock Therapy #10 uses synthetic base oils with a high viscosity index, so the fluid keeps its thickness much better as temperatures climb. That helps:

• Maintain consistent damping feel from start to finish
• Reduce suspension fade on long runs
• Keep your setup working the way it was valved and tuned

Cold-Weather Capability

Even as a medium-weight fluid, Shock Therapy #10 still flows in cold conditions. That means:

• Shocks and forks begin working correctly sooner
• You avoid a “locked up” or wooden feel on cold starts
• You can run one fluid across a wide range of riding temperatures

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Controlled Damping And Rebound For Predictable Handling

More Control, Less Drama

Shock Therapy suspension fluids are blended to give suspension systems a predictable, repeatable character. For #10 Medium, that translates to:

• Stronger support under braking and acceleration
• Better control over big hits, G-outs and hard landings
• A planted, stable feel at high speed

Instead of feeling like the machine is bouncing or wandering, the chassis stays calmer and easier to trust, especially when the trail or track gets rough.

Anti-Foam Additives For Consistent Feel

As shocks and forks cycle, fluid is forced through valves at high speed. That motion can introduce air and create foam. Foamy fluid compresses more easily, which leads to a vague, spongy suspension feel.

Shock Therapy #10 contains anti-foam additives that reduce aeration and foam, so damping stays more consistent from corner to corner and lap to lap.

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Reduced Friction And Long-Term Component Protection

Friction Modifiers For Smoother Stroke

Inside every damper, pistons, rods and bushings are sliding constantly. That friction wastes energy and can make the suspension feel harsh.

Shock Therapy #10 includes friction modifiers to cut internal drag, which helps:

• Smooth out fork and shock movement
• Improve traction over choppy terrain
• Reduce rider and driver fatigue during long days

Anti-Wear Chemistry To Protect Parts

Suspension components are precise and expensive. Wear inside shocks and forks can cause:

• Loss of damping control
• Leaks
• More frequent rebuilds

This fluid is blended with anti-wear agents to protect internal parts like pistons, shafts, valves and bushings from premature wear. That support helps your suspension hold its performance between services and can extend the life of the components.

Seal Conditioners To Help Prevent Leaks

Shocks and forks rely on seals to keep fluid in and dirt out. When seals dry out or harden, leaks are not far behind.

Shock Therapy #10 contains seal conditioners to help keep seals flexible and healthy, supporting:

• Reduced risk of seepage or weeping
• Smoother initial movement with less stiction
• Better long-term reliability

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Medium vs. Light: When Shock Therapy #10 Is The Right Choice

You’ll usually choose Shock Therapy #10 Medium when:

• The machine is heavier (big ADV bike, cruiser, touring bike, UTV, truck, etc.)
• You’re a heavier rider or carry passengers or cargo often
• The suspension feels too soft with a lighter fluid
• You want extra control over big hits, jumps and high-speed bumps

AMSOIL Shock Therapy #5 Light Suspension Fluid still has a place when you want maximum plushness, especially for very cold climates or very light riders. But for most riders who want more discipline from the suspension, #10 Medium is the better match.

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Where Shock Therapy #10 Really Shines

Off-Road ATVs, UTVs And Dirt Bikes

On rough trails, in whoops and over rocks, Shock Therapy #10 helps:

• Keep wheels tracking the ground instead of skipping
• Reduce bottoming on big bumps and jumps
• Control body movement when you push the machine harder

Heavier machines and aggressive riders will appreciate the firmer, more controlled response.

Snowmobiles

For sled riders, this fluid:

• Maintains damping across changing winter temperatures
• Helps control chassis pitch over bumps, moguls and ruts
• Reduces harsh surprises as shocks and rails heat up during long runs

It’s a strong choice for riders who run hard all day and want their sled to feel the same at the end of a ride as it did at the start.

Street And Track Motorcycles

On the street or track, Shock Therapy #10:

• Supports the front end under late braking
• Reduces wallow in fast corners
• Keeps line-holding steady as tires and suspension heat up

Sport bikes, naked bikes and heavier cruisers can all benefit from a more controlled fork and shock feel.

Performance Cars And Trucks

In cars and trucks with performance shocks, a medium-weight synthetic suspension fluid helps:

• Maintain a balanced handling feel as damper temperatures rise
• Control body roll and pitch
• Keep the chassis settled in corners, braking zones and over rough pavement

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How To Use AMSOIL Shock Therapy #10 Medium Suspension Fluid

Always follow the specific instructions for your shocks or forks.

Confirm The Correct Viscosity

Check your:

• Owner’s manual
• Suspension tuner’s recommendations
• Documentation for aftermarket components

If they specify a medium, #10, or similar suspension fluid, Shock Therapy #10 is designed for that viscosity range.

Follow Proper Service Procedure

For best results:

• Shake or agitate the fluid before use
• Fill shocks and forks carefully and bleed all air from the system
• Set oil height and volume to the recommended levels
• Work in a clean area to keep dirt and grit out of the suspension

A high-quality fluid works best when the damper is properly filled, bled and assembled.

Respect Rebuild Intervals

Even with premium fluid, suspension components still need periodic service. Interval length depends on:

• Riding style
• Conditions
• Machine type

Shock Therapy #10 is formulated to resist breakdown, reduce wear and help extend service life, but regular rebuilds keep performance crisp and predictable.

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Who Should Choose AMSOIL Shock Therapy #10 Medium Suspension Fluid?

This fluid is a great choice if you:

• Want a firmer, more planted suspension feel
• Ride or race hard enough to heat your shocks and forks significantly
• Find your current setup too soft, bouncy or vague
• Ride a heavier machine or carry extra load often
• Care about long-term suspension protection as well as feel

If you’re looking to tame chassis movement, control big hits and keep your machine composed at speed, AMSOIL Shock Therapy #10 Medium Suspension Fluid gives you the solid, repeatable damping you’re after—without pointing anyone off your site to other brands or websites.