Synthetic Dirt Bike Oil
AMSOIL’s Synthetic Dirt Bike Oil is crafted for both 2-stroke and 4-stroke engines. It provides high film strength, reduces friction, and prevents wear during high-speed rides. This oil resists thermal breakdown, keeping dirt bike engines running smoothly even in rugged off-road conditions

AMSOIL 100% Synthetic Dirt Bike Transmission Fluid
Product Code: DBTFQT-EA
4.9 star rating Read 36 reviews
AMSOIL 100% Synthetic Dirt Bike Transmission Fluid
Engineered for High-Performance, High-Torque Dirt Bike Transmissions
Why Choose AMSOIL Dirt Bike Transmission Fluid?
AMSOIL 100% Synthetic Dirt Bike Transmission Fluid is designed for riders who need consistent clutch feel, maximum protection, and reliable performance in all riding conditions. Built for racing, trail riding, and everything in between, this premium transmission oil helps extend gear and clutch life with unmatched synthetic protection.
Key Benefits of AMSOIL Dirt Bike Transmission Fluid
✅ Confident Clutch Feel
Optimized for Wet-Clutch Performance
- Formulated without friction modifiers to maintain a consistent, confident clutch engagement.
- Lower viscosity supports quicker and more aggressive clutch response.
Reliable in All Conditions
- Superior friction durability minimizes clutch slippage even under heavy load.
- Enhances rider control during tight maneuvers and trail navigation.
✅ Fights Gear & Clutch Wear
Advanced Anti-Wear Chemistry
- High-quality synthetic base oils resist viscosity loss due to mechanical shear.
- Protects against gear and clutch plate wear, extending component life.
Longer Transmission & Clutch Lifespan
- Helps reduce wear-related issues, promoting smoother, longer-lasting transmission operation.
- Delivers premium protection in both aggressive and recreational riding environments.
Product Specifications & Compatibility
This transmission fluid is engineered specifically for dirt bikes requiring a separate transmission fluid. For detailed specifications and recommended use, see the official AMSOIL Dirt Bike Transmission Fluid Product Data Sheet (external link).

AMSOIL 10W-40 100% Synthetic Dirt Bike Oil
5 star rating Read 169 reviews
AMSOIL 10W-40 100% Synthetic Dirt Bike Oil
Race-Proven Synthetic Oil for Peak Dirt Bike Performance
Engineered for High-Intensity Riding Conditions
AMSOIL 10W-40 100% Synthetic Dirt Bike Oil is the go-to choice for riders who push their machines to the limit. Whether you’re competing on the track or carving trails on the weekend, this premium synthetic oil delivers unmatched wear protection, horsepower retention, and consistent clutch performance.
Key Benefits of AMSOIL Dirt Bike Oil 10W-40
✅ Confidence in Clutch Feel
Race-Tested for Reliable Performance
- Superior friction-durability minimizes clutch slippage, fade, and chatter.
- Delivers consistent clutch feel during starts and tight maneuvers.
- Proven in lab and on-track tests to outperform OEM-branded oils in clutch cleanliness and reliability.
Test-Driven Excellence
- Maintains superior performance even after 32 simulated race starts.
- OEM-branded oils show inconsistent performance after just 16 starts.
- Helps riders feel confident that their bike will respond dependably in all riding conditions.
✅ Protects Against Wear
Maximum Protection Under Stress
- Withstands high-rpm operation, extreme heat, and mechanical stress.
- Advanced anti-wear additives provide extra defense against gear, bearing, and piston wear.
Boosts Longevity
- Helps extend the life of clutches and engine internals.
- Maintains oil viscosity to ensure a long-lasting, protective lubrication film.
✅ Racing is Research™
- Extensively tested in the bikes of professional riders.
- Lab and track feedback were used to fine-tune performance attributes.
- Delivers a perfect blend of protection and power riders demand on every terrain.
Applications
Use AMSOIL 10W-40 Synthetic Dirt Bike Oil in motorcycles requiring 10W-40, including:
- Honda, Yamaha, Kawasaki, Suzuki, Husqvarna
- Ideal for separate-sump and many 2-stroke applications like Honda CRF
- Specifications: JASO MA; API SG, SJ, SH, SL
Service Life & Compatibility
Recommended Change Intervals
- Follow the manufacturer’s oil-change recommendations for your specific bike.
Oil Compatibility
- Fully compatible with synthetic and conventional oils.
- Mixing with other oils may reduce AMSOIL’s performance benefits.
- Use without aftermarket additives for best results.

AMSOIL 10W-50 100% Synthetic Dirt Bike Oil
5 star rating Read 169 reviews
AMSOIL 10W-50 100% Synthetic Dirt Bike Oil
Built for Performance Riders Who Demand Maximum Protection and Control
Push the Limits—Without Pushing Your Bike Too Far
AMSOIL 10W-50 100% Synthetic Dirt Bike Oil is expertly crafted for high-performance dirt bike engines that face the toughest off-road conditions. Developed through extensive field testing and rider feedback, this oil is the trusted choice of professionals and weekend enthusiasts alike. It’s designed to help your engine keep up with your ambition—whether on the trail, track, or somewhere in between.
Benefits of AMSOIL 10W-50 Dirt Bike Oil
✅ Smoother, More Predictable Clutch Engagement
Engineered for Reliable Wet-Clutch Control
- Delivers consistent, fade-resistant clutch feel for confident starts and sharp cornering.
- Helps reduce clutch slippage and chatter even under aggressive riding conditions.
- Tested to outperform OEM oils by maintaining performance after 32 simulated race starts, versus degradation seen in competitors after just 16.
Proven to Perform in Tough Terrain
- Keeps clutch plates clean and intact under stress.
- Provides smooth, responsive lever action, helping riders stay in control during technical maneuvers.
✅ Extreme Protection Where It Matters Most
Durable Against Heat and Shear
- Resists breakdown from high RPMs and scorching engine temperatures.
- Maintains protective viscosity to shield gears, bearings, and pistons against wear.
Built for Longevity and Reliability
- Helps preserve engine integrity through anti-wear additives and stable base oils.
- Supports extended clutch and component life in demanding dirt bike environments.
✅ Track-Tested, Rider-Approved
- Developed alongside professional racers under real-world riding conditions.
- Tuned for optimal clutch performance and gear protection based on lab and track data.
- Offers consistent performance that inspires rider confidence in every ride.
Recommended Applications
Ideal for dirt bikes requiring 10W-50 motorcycle oil, including:
- KTM, Kawasaki, Yamaha, Suzuki, and Husqvarna
- Meets or exceeds: JASO MA, API SG, SJ, SH, SL
- Tailored for competitive racing and rugged off-road use
Service Life & Maintenance
When to Change the Oil
- Follow your dirt bike manufacturer’s recommended oil-change intervals for best results.
Oil Compatibility Notice
- Fully compatible with synthetic and conventional oils, though mixing may reduce AMSOIL’s full performance benefits.
- Avoid using aftermarket additives to maintain optimal protection and longevity.
Warranty-Safe Performance
Using AMSOIL Synthetic Dirt Bike Oil won’t void your factory warranty. It’s a premium alternative to OEM oils and is fully backed by the AMSOIL Limited Warranty.
➡️ Learn more: AMSOIL Warranty Information
Health & Safety Information
- Safe when used according to product instructions.
- Refer to the Safety Data Sheet (SDS) at www.amsoil.com or call (715) 392-7101 for detailed info.
- Keep out of reach of children. Recycle used oil and containers responsibly.
Trademark Disclaimer
All trademarked names and logos are the property of their respective owners and may be registered in various jurisdictions. Use of these names does not imply endorsement by or affiliation with those entities.

AMSOIL 10W-60 100% Synthetic Dirt Bike Oil
5 star rating Read 169 reviews
AMSOIL 10W-60 100% Synthetic Dirt Bike Oil
Built for Intensity — Designed for Durability in Demanding Dirt Bike Conditions
Ride Hard with Confidence and Control
AMSOIL 10W-60 Synthetic Dirt Bike Oil is tailored for riders who push their bikes to extremes. Developed by AMSOIL, a leader in synthetic lubrication technology, this advanced formula offers dependable protection and responsive clutch control. From intense racing to rugged off-road trails, it ensures your engine and transmission perform flawlessly when it matters most.
Outstanding Benefits of AMSOIL 10W-60 Dirt Bike Oil
✅ Reliable Clutch Response
Smooth and Stable Engagement
- Delivers a predictable and consistent clutch feel throughout aggressive riding sessions.
- Resists slippage, chatter, and fade to help riders execute sharp takeoffs and maneuver tricky terrain with ease.
Proven Results Under Pressure
- Outperforms leading OEM oils by sustaining optimal clutch action through repeated simulated race starts.
- Keeps clutch plates cleaner and in better condition, reducing wear and improving feel.
✅ Tough on Wear, Gentle on Components
Maximum Resistance to Heat and Shear
- Built with synthetic base oils that hold up to high RPMs and engine heat.
- Maintains oil viscosity to shield pistons, gears, and bearings against metal-to-metal contact.
Engine Longevity and Power Retention
- Reduces wear-related breakdowns and maintains engine efficiency over time.
- Helps maximize horsepower while extending clutch and internal part life.
✅ Track-Validated Performance
- Developed through rigorous on-track testing and real-world feedback from professional dirt bike riders.
- Fine-tuned for balanced wear protection and consistent riding feel.
- Offers the precision and performance serious riders rely on.
Where It Works Best
Perfect for motorcycles that require 10W-60 viscosity, including models from:
- KTM and Husqvarna
- Recommended for high-performance and off-road applications
- Industry standards met: JASO MA, API SG/SJ/SH/SL
Maintenance and Oil Change Guidelines
Recommended Oil Change Intervals
- Always refer to your bike’s manufacturer guidelines for proper service intervals.
Oil Mixing Compatibility
- Compatible with synthetic and conventional oils, though mixing may lower AMSOIL’s performance.
- Avoid using aftermarket additives to preserve full protective benefits.
Warranty-Friendly Protection
AMSOIL Synthetic Dirt Bike Oil is fully Warranty Secure, making it a safe and reliable upgrade from OEM-branded oils.
➡️ Learn more: AMSOIL Warranty Info
Safety & Handling
- Safe for use under typical riding conditions when applied as instructed.
- SDS documentation available at www.amsoil.com or by calling (715) 392-7101.
- Caution: Keep out of reach of children. Recycle used oil and packaging properly.
Trademark & Affiliation Notice
Brand names and trademarks mentioned are the property of their respective owners. No endorsement or affiliation is implied. AMSOIL products are independently developed for the applications listed.
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