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Synthetic SAE 10W-40 Dirt Bike Oil (DB40)

 Synthetic SAE 10W-40 Dirt Bike Oil (DB40)
Product Code: DB40 • Brand: AMSOIL

Designed to improve the performance of bike and rider.

Engineered to deliver the performance attributes most requested by on - and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of 'friction durability', so whether deep into a race or deep in the woods, riders can feel confident that their clutch will perform from start to finish. AMSOIL exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.

Package sizes include:

1-Quart Bottle
1-Quart Bottles (case of 12)

See Pricing or Place an Order
MSDS Data Sheet

Product Details

Product Applications

10W-40 Synthetic Dirt Bike Oil: recommended for Honda®, Yamaha®, Kawasaki®, Suzuki®, Husqvarna® and other dirt bikes where 10W-40 motorcycle oil is used. Recommended for separate-sump applications such as Honda CRF, and many two-stroke dirt bikes.

Product Application Specs

  • API SG, SJ, SH, SL
  • JASO MA

Product Description

AMSOIL INC., the premier manufacturer of synthetic motorcycle lubricants, focuses on improving lubricant performance so riders can focus on improving their performance on the trail or the track. That's why AMSOIL is the Official Oil of Monster Energy Supercross, AMSOIL Arenacross, AMSOIL GNCC and the AMA Amateur Nationals.

Delivers Confidence in Clutch Feel

AMSOIL Synthetic Dirt Bike Oil's superior friction-durability properties help minimize clutch slippage, fade and chatter, giving riders consistent clutch feel during takeoffs or when maneuvering around obstacles on the trail. In an extreme simulated-start test, AMSOIL Synthetic Dirt Bike Oil continued to deliver consistent clutch feel following 32 simulated race starts, while a leading original equipment manufacturer (OEM)-branded oil demonstrated inconsistent clutch-lever action and poor clutch feel after 16 starts.

The clutch plates lubricated with AMSOIL Synthetic Dirt Bike Oil remained clean and in good overall condition, while the plates using the OEM oil revealed discoloration and wear. AMSOIL Synthetic Dirt Bike Oil's superior performance helps instill in riders the confidence that their bikes will perform consistently in all types of riding conditions.

Protects Against Wear

AMSOIL Synthetic Dirt Bike Oil withstands high-rpm operation, extreme heat and mechanical shear. Its synthetic base oils naturally resist viscosity loss and provide a protective film against wear to gears, bearings and pistons. Its anti-wear additives provide an extra measure of protection, promoting long component life to help riders get the most out of their bikes.

• Delivers confidence in clutch feel
• Superior protection against gear, bearing & piston wear
• Maximizes horsepower
• Helps extend clutch life

Extreme simulated start test for clutch plate

RACING IS RESEARCH™

AMSOIL Synthetic Dirt Bike Oil underwent extensive on-track testing in the bikes of AMSOIL-sponsored professional riders on the GEICO/AMSOIL/Honda Factory Connection and Team Babbitt's racing teams. A combination of racer feedback and lab testing allowed AMSOIL to fine-tune AMSOIL Synthetic Dirt Bike Oil for outstanding wear protection and consistent clutch feel "" benefits riders demand.

SERVICE LIFE

AMSOIL Synthetic Dirt Bike Oil should be changed according to the vehicle manufacturer's recommendations.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL DB40.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Technical Data

TYPICAL TECHNICAL PROPERTIES
SAE 10W-40 Dirt Bike Oil (DB40)
Kinematic Viscosity @ 100°C, cSt (ASTM D445) 14.2
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 93.5
Viscosity Index (ASTM D2270) 156
Flash Point °C (°F) (ASTM D92) 246 (475)
Flash Point °C (°F) (ASTM D92) 254 (489)
Pour Point °C (°F) (ASTM D97) -44 (-47)
Noack Volatility, % weight loss (g/100g) (ASTM D5800) 4.0
High Temperature/High Shear Viscosity @ 150°C , 1.0 x 106 s-1), cP (ASTM D5481) 4.1

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Also use AMSOIL Gasoline Stabilizer, in addition to fresh Oil & Filter


 Synthetic SAE 10W-40 Dirt Bike Oil (DB40)

Did this product meet your expectations?

(click on a star to rate)

Product Name: Dirt Bike Motor Oils
Current Rating: 5 out of 5 stars
Votes & Reviews: 54 vote(s) and 41 user reviews.


A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Casey: space

Excellent Product!

Use in my son's KX250F dirt bike. Noticeable power increase, clutch feel, smoother running and holds up longer than other oils between changes.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KTM MX: space

Great oil

We use this on our race bike and when we service it still looks clean

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jet A Racing: space

Race oil

When your race counts on superior engine performance there is none better than Amsoil to give you the confidence in your motor.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

10-50 dirt bike oil

Never had a oil related failure

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Good stuff

This oil runs awesome in my son's kx100.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Great oil

I use it in my 2011 KLR650. My bike shifts better since I switched to AMSOIL and performance is much better overall.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Improved clutch feel

I switched from the traditional Amsoil Motorcycle oil to the Dirt bike specific formula when it came out a few years back. The claims about improved clutch feel were not exaggerated. Considerably better clutch feel in my old YZ250F. Smoother engagement and a better slip zone.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BMW Rider: space

Not just for dirt bikes

I use this in my BMW adventure bike which sees hard use of the clutch in off highway riding to work through tough terrain.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CAJO: space

10/10

Love Amsoil products. Something I can count on always working even when racing is unpredictable.

Item Reviewed: Dirt Bike Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Amsoil dirt 10w40

Great product! Use on 4 strokes off road bikes that I service! Great protection, quality & consistency!

Item Reviewed: Dirt Bike Motor Oils
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