Customer Ratings & Reviews

I love Amsoil 20w50 in my primary and oil tank in my Buell XB. Cool running engine, smoother shifts. Amsoil is great!

Great product will never use anything else in my Harley!!

I have run this oil in a high compression Harley engine for 50K miles without a problem. Have run in extreme heat without engine failure.

I use this in all of my motorcycles. When I purchased my Streetglide in 2015, the dealership performed an oil change. When the summer came and I got stuck in traffic, the bike started knocking bad when accelerating. That week I switched to what I use in my other bike and have not had that issue since.

I have used this product for over 15 years in my 3 Harley's, one of which has over 40k. Wouldn't use any other MC oil.

I have been using this for years in my Harleys - wouldn't use anything else.

I bought a used 2007 R1200RT about 2 years ago and began using the 20W-50 synthetic. In Edmonton, Alberta, Canada we get big temperature differences if you start riding once the snow's gone and keep going until it arrives in the Fall. I also trailer it down to Phoenix to ride. Great product!

Simply a great product. Made my bike runs do much smoother with less engine knock.

Use this product in my Yamaha V Star 950. Excellent performance from this oil.

Use this oil in my bike and it stands up well to the extreme heat that my bike puts on it.

I maintain 2 Harleys and this is the ONLY oil I would ever consider using. It really prevents overheating in hot weather.

Used exclusively in my 2015 Street Glide Special.

This is my first purchase with amsoil. I am using this in my 2006 Harley Davidson Street Glide. I have put about a 1000 miles on the first oil change and the engine seems to run cooler as promised. I'll know more about performance after my next oil change. Friends swear by amsoil who gear heads like me. I'm sure I'll be pleased. The prices for preferred customers are worth the initial fee. I plan on switching my diesel truck to amsoil 25,000 oil change once I use up my current brand.

bought a new 2016 Harley Davidson ultra limited and after breaking in the engine and trans I switched to Amsoil lubes through out the whole bike. Engine, trans and primary case. I have used Amsoil interceptor in my snowmobiles for years and several thousand miles and have had no engine failures so I have good reason to expect the same excellent results in my new bike.

My bikes, and others. Do light work for others would be nice to get the products a little cheaper in bulk

I use this in my older wheelhorse it cools the motor by 12deg over regular oil .

I used Amsoil 20W50 V-Twin motorcycle oil for over 80,000 miles in my 2005 Harley and it was still running strong at 120,000 when I traded up to a 2016 Harley. I specified Amsoil at the 500 mile service and have rolled up 13,000 trouble free miles already. Looking forward to another 100,000.

After breakin on my new rebuild stroker evo, I added this 20W-50 synthetic V-twin oil. Then set out for 5,380 mile road trip, 2 up in mostly 90-100+ F heat. Total oil added was less than 2 oz! No heating issues! Very impressed with this product.

I use AMSOIL products in the Engine, Transmission and Primary case of all the Harley-Davidson motorcycles I've owned since I started riding after a 40 year hiatus in 2012. I have also used AMSOIL in all of my air cooled Volkswagen powered vehicles for decades. You can't beat it's quality. The fact AMSOIL sells application specific lubricants that really ARE superior to "universal" lubricants is a HUGE plus too.

Improved the performance and gas mileage on my motorcycle.