I have a 2016 Honda Goldwing which uses the same Lubricant/Sump for lubricating both the engine and transmission. All the motorcycles I've had that use this system have been hard on the oil because the lubed parts wear the oil in different ways. I can get an idea how the oil is wearing down by the way the transmission is shifting, after an oil change the gears shift very smoothly and easily. After a few thousand miles the shifting gets "clunky" and takes a little more toe pressure on the shifter especially when the motor has been driven for a while. The Amsoil 10W40 Metric Motorcycle Oil gives me a longer mileage window before this happens and I believe that it shows that it's protecting the moving parts better.

All oils/ greases are of excellent quality and recommend. Had a problem with a "Free" AMSOIL hat. was maybe kids size medium. sent an inquiry if there were larger sizes especially for my noggin but not a peep (or email) from the customer contact us form. So I guess if it isn't oil related they just ignore it.

I use this in my JD L118 riding mower. Keeps it very cool in the hot summer cutting 3 acres of grass once a week!

I’ve been running Amsoil metric and all my street bikes since 2005 my 2005 vstrom on my head for 15 years with over 125,000 miles didn’t burn a drop of oil I sold it and it still running today

All good

Been using amsoil going on 20 years nothing else goes into my vehicle's...

Only oil I run in my 1250 GS..

Wether it hear oil or motor oil as soon as you turn the key and drive it you can tell the difference

Great oil

I love using Amsoil makes the bikes run smoother, and hopefully last a lot longer.

The only thing I run in my legend.

the quality for price are awesome, like the jug format!

Excellent value/service.

When you compare all the top names oils Amsoil metric is the best oil and also the best price!

Great oil for all my motorcycles 👍👍

Great product as usual from Amsoil. My engine was even quieter after changing to this oil.

THE OIL IS GREAT BUT I'M WAITING FOR THE OIL FILTER TO COME IN?

Could not find this lube in the local retailers so I set up an on-line account and was really pleased with the ordering system and how fast the order arrived with standard shipping. I have used this product for the life of my bike and it seems to do a great job.

One of my customers rides BMW motorcycles husband/ Wife 2 Gs1200 adventures They experienced lower operating temperatures smother gear changes and better performance, they now use only Amsoil products on their machines ! Thank you for an amazing product! Bob

I’ve used Amsoil metric 10w-40 in Honda, Suzuki, BMW and Kawasaki motorcycles. And I have never experienced any engine oil related wear . And I have taken long extended tours on my Goldwings and BMW k1600b without changing oil(6,800 mile trips) without any problems whatsoever. When you have the best oil you can get, I don’t sweat the extended oil change intervals.