Customer Ratings & Reviews

I am very impressed with this oil. One of the biggest and best improvements since switching from syn 3 is a cooler running engine. No longer are my the inside of my legs hot and bothered from engine heat when riding in warmer weather. This has been a great change! I also notice a smoother running engine while riding and also at idle. Highly recommend this oil over syn 3!

Kit included everything needed for the oil change. Shipped and delivered quickly. Highly recommend

First time use of Amsoil during my HD oil change. Used because bike is hot running and Amsoil may run cooler and protect engine. So far very pleased with performance.

Love Amsoil the only oil that does good, Bike stays cool, less oil changes with Amsoil

Changed my oil using the 5 Qt + Amsoil Oil Filter. Everything went OK, actually only used 4 quarts of oil + the Filter. I typically use KN 171C oil filters but found out that the Amsoil filter is much more difficult to tighten, hand or otherwise. I am sure the Amsoil filter is good, but the installing it on a Trike was challenging.

I love this oil. It keeps my bike running smoothly and at slightly lower temperatures than other synthetic oil. Can’t beat it.

Amsoil Synthetic and filter combo is the best. I change fluids religiously, every 5k miles, and I ride hard, in all weather conditions. The viscosity is still good at 5k. Switching from the OEM to Amsoil, the engine immediately ran cooler, smoother and with less rocker noise (which is inherent to V-twins). Amsoil synthetic is truly worth the purchase and use.

I've used nothing but Amsoil since I purchased the bike. To me it's the best

This is the best oil ever the only oil I use on my Harley and my 2018 F150 highly recommend it

Been running this from the beginning on my 2021 Harley 30,000 miles. Will continue to use.

Very satisfied with the price and service , fast delevery

Have used this oil for over 30,000 miles in my present bike an 02' Police Electraglide and over 40,000 miles in my 05' Electraglide with very good results. I would recommend this to anyone who would like long engine life.

Good oil

Been using Amsoil products for years you can't find a better oil for all three holes in your Harley Great product.

Another excellent product

I have been buying this for a few years now on my Harley's. its everything you need in one box. I also recommend the V twin Primary and transmission oil. you will notice the difference in your shifting. Great Products.

Only oil I use in the Harley's.

Best oil on the market.

Only the best

Great product been running in all my TOYS for years