2020 crf450r was having a hard shifting issue 1st and 2nd gear. Decided to change from Honda GN4 to Amsoil. On very first ride big difference in trans shifting and has only gotten better. I am now a true believer in Amsoil Products

Use this oil in my kx450f and with great results. Bike shifts smoother and the oil is alot cleaner upon change intervals!

Best oil you can buy for your dirtbike

I've been running this in all my Dirt Bikes (Honda CRF50, CRF110, CRF250) and I've always trusted it. Never had any issues, I'm not a Pro or Expert by any means, just a trail rider and amateur wrench turner. Reviews compared to other oils were positive so I just stuck with it.

Works like a charm on all my wet clutch bikes. Shifts are smooth and suhweet!

I beleave in Amsoil too deliver Top notch protection on your engine keeps it cool and really well lubricant around pistons crank journals bearing and gears love this product

Excellent lubrication, the oil is super slick even when it's time to change. I use this in my motorcycle and wish I'd had it many times before. I used to use Lucas, while it's not a bad oil (at least I don't think it is) I figured Id give Amsoil a shot, and at least to say, I'm not looking back. My bike shifts smoother actually runs slightly cooler and just feels better all-around in general. I'm all about reliability and so far I'm sold. Great stuff, only downfall is it's a little pricey, but I guess you pay for what you get and good things don't come cheap. Going to try it in my truck next time around. I would recommend this product to anyone who is looking for the best product with the rest and reassurance that you're putting good stuff in your machine.

Just bought a 1993 Honda xr600r. The oil looked like mud. Changed it and the filter, and ran it hard for a week. Decided to change it again since it only takes a couple of quarts. Totally unnecessary. It was a bit off color from the old oil, but it hadn't broken down at all. I'm all in. Great product. Thanks.

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