Looking at the comparison video on YouTube from the third party tester sold me. I tell everyone about it, all the time. Amsoil with a wix filters and your set!

I use in each of my 2 my 300cc TPI bikes. Great clutch performance, even with rekluse auto clutch. Cushions gear surface and makes shifting smooth as well as firm engagement.

I’ve ridden motorcycles since I was five years old. I’ve used several of the main brand oils when I raced motocross back in the day. Amsoil product have always been reliable , not like some of the others. No mechanical problems in any of my seven bikes.

We have not had any trouble with this oil. We run it in our 4 stroke dirt bikes, two of them have the Rekluse Auto Clutch and Two with a stock clutch. Also run it in the Transmission on two of our 2 strokes, both with Auto Clutch. We have run other oils that will start "grabbing", particularly with the Auto Clutches. Have not had that trouble with this oil. We change it out every 6 to 8 hours depending. Have been very happy.

my kid loves this oil for his honda 250 motorcross bike.

I’ve trusted Amsoil for 6 years now and would never go anywhere else for my oil and lubricant needs. Never have had a bad experience and my engine always holds up strong.

Use this dirt bike oil for my Kawasaki KFX 400 quad.

Amsoil, when you want the best. A difference you can actually feel. Run nothing but Amsoil in my Harley's and my dirt bikes.

My son uses this in both his YZ250F and YZ450F at my insistence (I use Amsoil in all machines I service myself). He rides pretty hard and changes oil every 8-10 hours. Amsoil Dirt Bike seems to work well.

I run this in all my motorcycles, ATV and lawnmowers. It's worth it not having to go to in a Wal-Mart and get it delivered to my door.

Great product. I run Amsoil products in all my atvs. Orders come quickly every time. I highly recommend Amsoil products

Rebuilt my crf450x and is running really strong with the oil

Received oil beginning to switch over from Motul in the 2 stroke Happy

Always a great product.

I have been using Amsoil 10w50 oil in my 2016 KTM 1190 Adventure, and my 2019 Husqvarna FE 350 since they were new. I have inspected the valves in both motorcycles and everything looks great. I trust Amsoil products in all my vehicles.

I run it in all my bikes

I run amsoil in all my toys. I don’t mind spending more to get a great product as the old saying goes you get what you pay for. I’m not one to spend a bunch of money on a bike or side by side then cheap out on maintenance, I prefer my stuff to last and that’s why I use amsoil.

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This oil makes the engine run better seems to make more horsepower and better gas mileage. Is very clean when you do a change also.

great oil