- High viscosity index helps prevent fade under extreme temperatures
- Consistent, smooth damping
• Seal conditioners for extended service life - Race-grade technology
Product Overview
Developed for those who demand top performance from their suspension systems. Ideal for circle-track racing applications, cars, trucks, snowmobiles, ATVs, UTVs and motorcycles.
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.
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.
AMSOIL Shock Fluids Replace These Products
Shock Therapy® Light #5 Suspension Fluid (STL) |
| Bel-Ray* Fork 5W |
| Bel-Ray HVI Racing Suspension Fluid 3W |
| Bel-Ray HVI Racing Suspension Fluid 5W |
| Bilstein* Bilmst 3030KYB |
| Fuchs Silkolene* Pro RSF |
| Golden Spectro* Very Light |
| Klotz* 5W |
| KYB* |
| KYB K2C |
| Maxima* 75-390 Racing Shock Fluid Light 3 wt. |
| Maxima 85-150 Racing Fork Fluid 5W |
| Maxima Shock Fluid |
| Ohlins* Fork #5 |
| PJ1* Fork Oil |
| Pro Circuit* PC-01 Fork Fluid |
| Pro Circuit PC-02 Racing Shock Fluid |
| Pro Honda* High Performance SS-25 Shock Oil |
| Race Tech* Light |
| Race Tech US-1 Ultra Slick Shock Fluid 2.5-5 wt. |
| RaceTech USF-05 Ultra Slick Fork Fluid 5W |
| Redline* Light |
| RI* Suspension Fluid |
| Ryde FX* Slide Shock Oil |
| Showa* SS05 |
| SLP* Light |
Spectro* SPL Ultra Light |
Use Shock Therapy Light #5 in applications that require any of the following specifications:
- Denison* HF-0, HF-1, HF-2
- Racine* Variable Vane Pump
- Lee Norse* 100-1
- DIN 51524 Part 2
- Ford* M6C-32
- Afnor* E 48-603
- BF Goodrich* 0152 (except PM 500 Series)
Shock Therapy® Medium #10 Suspension Fluid (STM) |
| Bel-Ray Fork 10W |
| Bel-Ray HVI 10W |
| Fox* Racing Oil |
| Fuchs Silkolene (AMSOIL STM will give slower rebound than Fuchs) |
| Harley-Davidson* Screaming Eagle Performance Fork Oil Heavy (Shock Therapy #10 will have a faster rebound than Harley Heavy Fork Oil) |
| Harley-Davidson Type B |
| Harley-Davidson Type E |
| Klotz 10W Spectro SK400 Shock & Fork Oil |
| Maxima 111-390 Racing Shock Fluid Medium 7 wt. |
| Maxima Fork Oil 10 |
| Ohlins Fork Fluid #15 |
| Pro Honda SS-8 Suspension Fluid 10W |
| Redline Medium |
| Spectro Fork Oil 10W |
| Spectro SK400 Shock & Fork Oil |
| Spectro SPL Very Light |
Use Shock Therapy Medium #10 in applications that require any of the following specifications:
- Denison HF-0, HF-1, HF-2
- Racine Variable Vane Pump
- Lee Norse 100-1
- DIN 51524 Part 2
- Ford M6C-32
- Afnor E 48-603
- BF Goodrich 0152 (except PM 500 Series)
* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.
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Product information checked: September 2026. Product formulations, specifications, applications, availability and published claims can change.
For the latest official information, consult the AMSOIL Corproate Website.
