Product Reviewed: Synthetic SAE 10W-50 Dirt Bike Oil (DB50)
Current Rating: 5 out of 5 stars
Votes & Reviews: 36 vote(s) and 53 user reviews.
Reviewed by Craig: 
I race dirt bikes and have found this oil to stay cleaner than others after 10 hard racing hours.
Reviewed by Moto Mike:
I like the performance of this product in my YZ450F. Clutch feels great, motor runs smooth, and with the preferred customer pricing it's the same or better pricing than anything else.
Reviewed by Robert:
Been using Amsiol in my racing motorcycles for more than 25 years and love the performance and wear protection it gives.
Reviewed by Jim:
The only oil I use in my bike.
Reviewed by Cliff:
Amazing product
Reviewed by Willie:
I have this in 3 dirt bikes and so far I have no sticking clutch or anything. So I'm convinced it does it's job!
Reviewed by Bart:
My regional dealer I get amsoil through is without a doubt the best freaking guy ever! Always resolves any issue I've had imeaditely
Reviewed by Bob:
I started to run this oil on my adventure bikes. Needless to say that it does exactly what Amsoil says it does. Best clutch pull and feel, even after several slipper clutching maneuvers in difficult trails.
Reviewed by Matt:
Put this oil in my CR 85. Clutch feel is better and gear changes are smoother.
Reviewed by Rpm:
Can't buy better
Reviewed by Dk:
When switching from KTM factory recommended oil I noticed less engine noise and amsoil is not as expensive as the "orange oil". I've not done blackstone tests but I do believe the amsoil is working well for this 350xcf.
Reviewed by MikeB:
I currently own 4 dirt bikes and a quad and they all use Amsoil now. I've also rebuilt several bikes/quads that I've sold over the years. I've tested most of the major brands and Amsoil shifts so much better than most of the leading motorcycle specific brands! Amsoil is now my #1 with Max... being #2.
Reviewed by Jimmy:
I use it in my 2003 Suzuki DRZ 250
Reviewed by Believer:
Seems to work great and good clutch feel. Great price compared to dealer oil prices.
Reviewed by MOTODADJLG:
I have always used Amsoil in my sons Dirt bikes and we have never had the problems others have like bearings going out or rings seizing up.I do all of our mechanic work and motors using Amsoil don't show wear like other oils.Don't compromise protection use Amsoil.
Reviewed by The pro lube:
I use this oil in my dirt bikes and it's awesome it makes my bikes run smooth and the clutch feel is unbeatable it makes it feel super smooth and consistent feel i would definitely recommend it to someone that depends on there engine!!!!!!!!!!!!!!!!!!!!!!!!!!!.......
Reviewed by Evan:
Use this in my 2017 Benelli TNT 600. Makes it run like a champ!!
Reviewed by Dave in CO:
I use this oil to keep 3 different enduros running strong.
Reviewed by Dewey:
Three dirt bikes running strong no clutch slippage great product
Reviewed by S409:
Amsoil has never let me down. Unlike other oils, Amsoil has never smelt burnt or looked broken down after any of our long desert races.
Reviewed by Casey:
Use in my son's KX250F dirt bike. Noticeable power increase, clutch feel, smoother running and holds up longer than other oils between changes.
Reviewed by KTM MX:
We use this on our race bike and when we service it still looks clean
Reviewed by Jet A Racing:
When your race counts on superior engine performance there is none better than Amsoil to give you the confidence in your motor.
Reviewed by Mike:
Never had a oil related failure
Reviewed by Mike:
This oil runs awesome in my son's kx100.
Reviewed
by Bill:
I use it in my 2011 KLR650. My bike shifts better since I switched to AMSOIL and performance is much better overall.
Reviewed by Dave:
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.
Reviewed by BMW Rider:
I use this in my BMW adventure bike which sees hard use of the clutch in off highway riding to work through tough terrain.
Reviewed by CAJO:
Love Amsoil products. Something I can count on always working even when racing is unpredictable.
Reviewed by Jeff:
Great product! Use on 4 strokes off road bikes that I service! Great protection, quality & consistency!
Reviewed by Jordan:
Quality product
Reviewed by Bobcat1:
Use this product in two dirt bikes my son and I ride and race. Will use nothing else but Amsoil!
Reviewed by E Fryer:
Great product that does everything they say. The only oil I run in my dirt bikes. I don't have to rebuild my engines as often due to the quality of Amsoil. Which saves me money in the long run.
Reviewed by Racerross29:
We have use this
oil in all of our race bikes and have never had a oil related failure. Both Vintage 2 strokes and our modern 450cc 4 strokes.
We also use Amsoil in our team hauler.
Reviewed by Big Show:
I've used this for years in Harley's and saw the difference in dyno numbers first hand as a Master Technician. Now I'm racing dirt bikes again in the GNCC Series and see the difference in engine wear and clutch performance. I would buy this oil even if I were offered other oil for free!
Reviewed by Casey Barrett:
I use AMSOIL in everything I own without even thinking about it.
Reviewed by Jerry D:
I use it, from the DIFF. to the grease, for the steering, for my H.D., to my PRO- MASTER VAN, All my vehicles, it don't come any better, Jerry D.
Reviewed by Matt:
Amsoil is the best and this oil is no exception
Reviewed by Jersey Lou:
Smooth, crisp shifts on my '17 Husqvarna. Oil at changes is basically still clean. Just another great product.
Reviewed by Michel:
Great
Reviewed by Numbskall:
Convenient and quick delivery. Good product at a good price
Reviewed by Alex the Rider:
Wear has been low, clutch feel is great.
Reviewed by Cmart:
Run this in my 690
Reviewed by Superduke:
As most of you already know, Amsoil is the best lubrication money can buy. For my high-performance KTM Superduke 1290R motorcycle, the choice was obvious. Gained 1-2 mpg after install and the peace of mind knowing this oil meets all specifications for my ride are all I need to push this beast to redline over and over again. I use Amsoil lubricants in every vehicle I own. Wife's Lexus IS350, my Land Rover Discovery, lawn tractor, chainsaw, Yamaha scooter
Reviewed by Grnlmar Hare scrambler:
I use the 10w 50 in my 2015 Ktm 250 xcw. I have no problems with it and works great. It works great with my Rekluse clutch set up. It has stood up the rigors of all my 2 hour hare scrambles so I will continue to use it.
Reviewed by DM794:
I use this oil in my 2016 Kawasaki KX 450 and it outperforms all others I've used. I can feel the bike running cooler and the oil lasts longer than other synthetics I've used. Very happy and will use Amsoil for years to come.
Reviewed by Motomandan:
I use Amsoil Dirt Bike oils in all the dirt bikes I've owned. I race off road XC hare scrambles which generate a lot of heat in today's race 4 striokes and Amsoil gives me 100% piece of mind.
Reviewed by None:
Use it in all my dirt bikes and it's the best stuff out there!
Reviewed by Orangebrigade:
Have been running this in my ktm past two race seasons best oil out there hands down
Reviewed by Rustdoc:
The KLR 650 came alive after I put this in it. I had to clutch it to pull the front wheel. Now I just big on the gas and it will pull it freely. Seems like tons more torque and smoother engine performance. The KTM is already a beast and this made it into the Demon on steroids.
Reviewed by Bobby:
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!
Reviewed by Monte:
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!
Canada
United States
Reviewed by James Bender :
From Lucas oil to amsoil db50
Was running Lucas oil and it's a amsoil rep that lives close to me he told me about the amsoil db50 I tried it and love it run it in my son's Honda 150r and in my Yamaha wr400 the cluch seems to be really smooth superior protection