Synthetic SAE 10W-50 Dirt Bike Oil (DB50)
 Synthetic 10W-50 Dirt Bike Oil (DB50)

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)

Product Code: DB50 • Brand: AMSOIL

MSDS Data Sheet

Product Details Tech Data Reviews & Rating

Product Applications
10W-50 Synthetic Dirt Bike Oil: recommended for KTM®, Kawasaki, Yamaha, Suzuki, Husqvarna and other dirt bikes where 10W-50 motorcycle oil is used. Recommended in place of Motorex® Cross Power 4T.

Product Application Specs

  • API SG, SJ, SH, SL

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

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.

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

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 DB50.

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

SAE 10W-50 Dirt Bike Oil (DB50)
Kinematic Viscosity @ 100°C, cSt (ASTM D445) 18.1
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 121.9
Viscosity Index (ASTM D2270) 165
Flash Point °C (°F) (ASTM D92) 240 (464)
Flash Point °C (°F) (ASTM D92) 258 (496)
Pour Point °C (°F) (ASTM D97) -38 (-36)
Noack Volatility, % weight loss (g/100g) (ASTM D5800) 5.5
High Temperature/High Shear Viscosity @ 150°C , 1.0 x 106 s-1), cP (ASTM D5481)4.9

Did this product meet your expectations?

(click on a star to rate)
Product Name: Synthetic SAE 10W-50 Dirt Bike Oil (DB50)
Current Rating: 5 out of 5 stars
Total Votes: 2 vote(s)

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 Bobby: space

Best dirt bike oil on the market

I use the 10w 50 synthetic dirt bike oil in my KTM 350 SXF race bike. I have a rekluse clutch and with this oil, I can start the bike in second gear. With oils that I've used in the past, I was not able to start the bike in gear. In addition, I have a full season of two-hour woods endurance races on this engine with no sign of wear at all. I have friends with the same bike that use competitors oil that have already needed to rebuild both top and bottom ends. In my opinion, Amsoil 10W-50 dirt bike oil is the absolute best on the market!

Item Reviewed: Synthetic SAE 10W-50 Dirt Bike Oil (DB50)

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 Monte: space

Without question the best product out there.

You have won my trust. Amsoil products are my default. I maintain my rigs, but run them hard. Sold my last truck at 275000 miles,wish I had kept it!

Item Reviewed: Synthetic SAE 10W-50 Dirt Bike Oil (DB50)
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