Customer Ratings & Reviews

You get what you pay for. In my opinion, this is the best oil you can find. My truck and motorcycle run so much smoother. I've been using that m stuff for years. I'm glad I switched.

I ride a 2014 Honda CRF250L 70% dirt,30% street. Previously used the Hondaline Synthetic thinking it was best available.Decided to try the Amsoil 10/40 , shocking difference from first start after oil and filter change. Smoother clutch action and shifting as well as knowing the Amsoil reputation for internal engine protection.My oil of choice from now on!

Seems to have stop clutch chatter, bike seems to run cooler and lengthened oil change intervals.

Oil that is clearly a top stellar performer.

I strictly use Amsoil products for my motorcycle. If you look at the comparison charts with other major synthetic oils there is no comparison. I go between 5K and 7500 and occasionalky 10K miles and it comes clean enough you can see through it and the magnetic drain plug never has filings on it. In the Goldwing the motor oil is also the clutch and tranny fluid. Shifts smoothly all through the miles from 1 to 5K.

What a great product; it cools the engine 12 to 15 degrees; shifts are smoother and the engine seems quieter. Also have the confidence that I have one of the best oils on the planet.

It is peace of mind to know this is best oil. Makes it a joy to run it in my Ninja 300

I will say it over and over again. I will not use anything but amsoil in my machines. Incredible smooth shifting

Excellent oil! Protects and lasts a long time. Highly recommend!

I purchased a pre-owned Can-Am Spyder last year. After changing the spark plugs and cleaning one of the sensors I noticed that the oil had never been changed. I bought the bike with 13,000 miles on it. I switched over to Amsoil 10w40 metric motorcycle oil and I can't describe how much better the bike runs. It's literally like it drove off the showroom. Throttle response is better, the motor runs cooler, the gears shift cleaner, even after one oil change the difference is phenomenal. I'm going to change the oil again in the next month just to make sure that we got all the particles and everything out of the engine. This is a phenomenal product and it's saved my bike. THANKS AMSOIL!

Used this for the first oil change after buying a new 125cc name brand motorcycle, could immediately hear a smoother performance on Amsoil vs the oil used by the dealer. These are high revving little engine and good oil makes a difference

I've been using using the 10W-40 Metric product in a CBR1000RR for most of a race season now with filter changes and a top up between weekends. Where most folks will change after every race weekend, I only had to do a full change after three, and I probably could have gone longer. My engine runs cooler and shifts smoother with this too. Can't recommend it highly enough.

I started using it in my yfz450r after conventional oil was not holding its viscosity after 5 hrs - the Amsoil still looks new after 5 hrs! I use it in my sons xr- 80 and my youngest sons xr50 - it honestly brought the tired little 50 back to life - easier starts- smoother shifts (almost seemless) and the engine is much quieter -after that i swear by Amsoil and will use nothing else in my machines!

I've used amsoil for as long as I can remember, once you use it for the first time, you just can't stop using it. It's that simple.

I’ve been using Amsoil in every vehicle I own, including my Harley and Triumph motorcycles. Even all my 4 cycle power equipment! I’ve never had any issues with any engine. My Diesel powered truck has over 300k miles and still runs like new! Knowing I have a high quality oil in my vehicles and power equipment gives me peace of mind!

Great product.

I have used Amsoil in the last three motorcycles that I owned including the one I now have. I've always been very happy with the quality and service I get from your product. Ordering online has made it even better for me now because I'm not looking for local suppliers. keep up the good work.

It's the best oil

Been using Amsoil Vtwin oil for years in my Victory XC tour, loved it! Now I have a goldwing I am using this oil, I am sure it will be just as good. Just put it in my last oil change.

I have been using Amsoil for quite some time and I love the oil it works great keeps your engine cooler and does what I need to do.