Outstanding oil, makes my shifts much smoother.

My big cc air/oil cooled Ducatis get well used and ridden hard. Amsoil helps keep them in tip top shape

I just put this oil in my bike yesterday. I took a ride after, and the bottom end sounded more quiet than before.

My twin cam Harley Super Glide is air cooled. This oil protects the engine even on 95 degree days. You need this oil in your air cooled engine!

Use it my 14FatLo. Will not use any other oil. I’m my opinion at this moment in times it’s the best.

The Best Oil I have ever used, makes my Harley-Davidson run better, cooler, and quieter,and the engine, Transmission & primary should last a long time using Amsoil 20W-50

My first time using amsoil on my 2001 Harley-Davidson Wide-Glide was easy and is a good product i would use again bottle was good shape fit in to the space i need to put oil in the bike without making a mess

In my opinion this is the best engine oil for my Harley Davidson Fatboy motorcycle. I have inspected some of the internals on my engine, and at 46K miles, there is very little wear indicated. I also use AMSOIL in my trucks engine. I highly recommend this synthetic engine oil to anyone who owns a motorcycle, especially an air cooled engine.

Great product. Use in all 3 holes in my Ultra classic.

This oil can go the distance without breaking down.

I have had at least 1 Victory in my garage since 2001 and I have run Amsoil in all of them. Originally I ran the 20W-50 until this 20W-40 came out. Between my wife and I, since we both ride Victory's, I have had 5 Victory's running nothing but Amsoil since 2003. I still have 3 of those including a 2004 Vegas that actually has the lowest miles of the three I have, now that it doesn't go to rallies any more. Currently we run a pair of Visions and Amsoil is the only oil I trust to keep these bikes running smooth. And since they don't make these Victory's anymore I will keep running Amsoil so they will run as long as I will!

My first time trying AMSOI systematic 20w 50 could be a good oil for a stock bike. Unfortunately Im needing a oil with a anti foaming so cativation will not occure while at high RPM's/ speeds.

Great

Always great product have used in three bikes over 400000 miles

Huile de qualité supérieur, 15,000km entre chaque changement d'huile....Merci....

Great oil, keeps my engine from running hot

Had the infamous Harley tick, after Harley oil, redline and even Mobil one …Amsoil was the only one to quiet it down and even eliminated it entirely after a few minutes

So far very pleased with this oil in my Harley! All three holes!!!

Oil works great, quiets the motor down and helps it to run cooler and last longer between changes.

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