AMSOIL 10W-40 Synthetic Dirt Bike Oil
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10W-40 Synthetic Dirt Bike OilHelp

Designed to improve the performance of bike and rider.

10W-40 Synthetic Dirt Bike Oil Product Image
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$13.80 Retail Price (USD)
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Product Code: DB40QT-EA
Product Highlights View Full Description

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 their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.

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 track. That's why AMSOIL is the Official Oil of Monster Energy Supercross, AMSOIL Arenacross and the AMSOIL GNCC.

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

Rings

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.

APPLICATIONS
Use 10W-40 Synthetic Dirt Bike Oil in dirt bikes that require 10W-40 motorcycle oil, including those made by Honda*, Yamaha*, Kawasaki*, Suzuki* and Husqvarna. Recommended for separate-sump applications, including the Honda CRF, and many two-stroke dirt bikes. JASO MA; API SG, SJ, SH, SL.

*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.

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

COMPATIBILITY
AMSOIL Synthetic Dirt Bike Oil is compatible with other synthetic and conventional motor oils. Adding other oils, however, will shorten the life expectancy of AMSOIL motor oils and reduce their performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL Synthetic Dirt Bike Oil.

WARRANTY SECURE
AMSOIL Synthetic Dirt Bike Oil is Warranty Secure, keeping your factory warranty intact. AMSOIL Synthetic Dirt Bike Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the AMSOIL Limited Warranty. For details, visit www.amsoil.com/warrantysecure.

Warranty Secure

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended applications and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.

DB40 Package Sizes
Code Package Size Unit of Measure Product
DB40QT (DB40QT-EA) Quart Each 10W-40 Synthetic Dirt Bike Oil
DB40QT (DB40QT-CA) Quart Case of 12 10W-40 Synthetic Dirt Bike Oil
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REVIEW SNAPSHOT®

by PowerReviews
AMSOIL10W-40 Synthetic Dirt Bike Oil
 
5.0

(based on 39 reviews)

Ratings Distribution

  • 5 Stars

     

    (39)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 39 customers

Displaying reviews 1-10

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5.0

I will buy this product every time.

By 

from Grants Pass, OR

Verified Buyer

Comments about 10W-40 Synthetic Dirt Bike Oil:

I use it in my honda 450x and the clutch feel is real.Amsoil said it helps your clutch and they aren't lying.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Off-road motorcycles
 
5.0

I will continue to buy Amsoil for my machines.

By 

from Indiana

Verified Buyer

Comments about 10W-40 Synthetic Dirt Bike Oil:

Amsoil dirt is exceptional in my Honda. Clutch works great and my motor stays clean!!

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • Honda CRF 450r
 
5.0

amsoil is the most trusted

By 

from springfield MA

Verified Buyer

Comments about 10W-40 Synthetic Dirt Bike Oil:

never disappointed use it in everything

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • cars scooters motorcycles
 
5.0

Repeat on buying this oil!!

By 

from Jefferson City Missouri

Verified Buyer

Comments about 10W-40 Synthetic Dirt Bike Oil:

Grandson races his bike. And this oil seems to help and last longer!!

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 250 Kaw bike. 2004 Chevy Silverado
 
5.0

Yes

By 

from Québec Canada

Verified Buyer

Comments about 10W-50 Synthetic Dirt Bike Oil:

Great

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • mx bike and street bike
 
5.0

Will continue to purchase

By 

from Calgary Alberta

Verified Buyer

Comments about 10W-50 Synthetic Dirt Bike Oil:

Convenient and quick delivery. Good product at a good price

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 4×4, car, dirt bikes, Adventure Motorcyc

(1 of 1 customers found this review helpful)

 
5.0

Great Stuff

By 

from Seal Beach, CA

Verified Buyer

Comments about 10W-50 Synthetic Dirt Bike Oil:

Wear has been low, clutch feel is great.

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • YZ450F, XR650L, 900 HP Mustang
 
5.0

I recommend this product to all my racing competitors.

By 

from Bismarck, nd

Verified Buyer

Comments about 10W-60 Synthetic Dirt Bike Oil:

I use this amsoil in all my race bikes and recreational toys. When I need more product, I order online and its at my doorstep in 2 days.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • chevy pickup, summer and winter toys.

(1 of 1 customers found this review helpful)

 
5.0

Great product

By 

from Oklahoma

Verified Buyer

Comments about 10W-40 Synthetic Dirt Bike Oil:

Product allows us to run more hours on our KTM's before engine overhaul. Great product!

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • Suzuki RM85 and KTM 85/105s
 
5.0

I use Amsoil

By 

from Ky

Verified Buyer

Comments about 10W-40 Synthetic Dirt Bike Oil:

I have a lot of engines in different kinds of equipment and vehicles. I use Amsoil in everyone of them except my airplanes. Have been using Amsoil for over 30 years. If I live long enough I will use it 30 more. Great oil and great customer service.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Not enough space to explain

Displaying reviews 1-10

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