Customer Ratings & Reviews

The 20w-50 synthetic V-twin motorcycle oil makes the shifting of the transmission smoother than stock oil, and shifting into neutral is the best ever with Amsoil. Also engine oil pressure when hot maintains constant oil pressure

After reading many oil surveys, Amsoil was the most popular among Harley owners old and new. I have used Amsoil in my cars and trucks for a while now, so it was a natural choice. The difference on start up is instantly noticeable with a big reduction in mechanical clatter.

I have used Amsoil VTwin for 10years. I have a 2012 ElctraGlide with 165k miles and have never been into the engine. I reccomend Ansoil to everyone I speak to about oil.

Use Amsoil in everything I own except airplane. Both Harley's use this and associated tranny and primary.

Keeps my Electa Glide running cool. 90,000 miles with no mechanical issues.

I ride sometimes in the city at 0 to plus 5 cel.oil flows like summer time

Ones a year. Super convenient!

Amsoil continues to perform as advertised.

Best syn oil on the market, been using it for years. I've seen first hand on this oil how it saves engine life.

My Harley road king classic seems to run quieter and a little stronger too.

I have a 1995 Heritage Softail Classic and always had problems finding neutral when coming to a stop. I added Amsoil 20w-50 full synthetic to the primary and this problem went away. A friend had the same problem with his 2014 Ultra Classic Limited so I suggested this to him and it also took care of his issue.

I have been running this product for years, The protection it gives my engine is 2nd to none

use Amsoil in two different Harley Davidson motorcycles and had good luck with it

wouldn't use anything else hands down the beat u can get

The best product I ever used

Can tell noticable temperature reduction in my 110 Harley davidson motor.

I have a Harley low rider s with the 110ci and I run the v twin oil in my engine, the primary oil in the primary. And the severe gear 75 90 in my tranny. Runs like a dream, only complaint is the tranny fluid is next to impossible to see on the dip stick so it's hard to tell the fluid level when filling. Wish it had a dye in it or something

I've run Amsoil for as long as I have rode Harley's and this is my third one. Not one minutes trouble and I have rode in some of hot weather it was so hot a friends bike shut down and mine never skipped a beat. Now my friend runs Amsoil as well

Use it in both my 02 Ultra and 05 Heritage knowing its going to keep them lubricated and running through the long haul.

I use it in my bike best oil ever. Best for tranny and primary products love it.