Product Reviewed: 20W-40 Synthetic V-Twin Motorcycle Oil (MVI)
Current Rating: 4.99 out of 5 stars
Votes & Reviews: 56 vote(s) and 28 user reviews.
Reviewed by Oldmanrick: 
I bought the 20W40 for use in my Victory Cross Country. The top end is noticibly quieter. The oil change is good for a year, or 10,000 miles. I'm happy!
Reviewed by TheBull:
This is my first time using Amsoil. Great product.
Reviewed by Ron:
Was a dealer for many, many years and have used Amsoil in every truck, sports car and motorcycle over the years. It gives me peace of mind with the full syn protection and meets the odd specifications required by Indian Motorcycle for their new TS-111 motor...whereas most others use 10w40 or 20w50. Indian also uses a syn blend which to me means it is really a oil like Castrol...great oil but not giving you full advantage of synthetic protection as the weakest link is the regular oil without the modified cell structure. I run the Indian filter but will change to a WIX filter in future but I have full confidence in Amsoil oils in cars and especially my bikes. All of my Indians also had/have a wet clutch system and Amsoil does not add friction modifiers so they are safe with wet clutch setups...and I do some hard riding and never a problem. Great product....full confidence even now when I am no longer a dealer...just a customer. :)
Reviewed by ExCaptain:
As always really like the Amsoil, I have changed all my vehicles over to it along with my motorcycle and will be switching my tractor over on the next change.
Reviewed by Pasco:
I have a 2012 Victory Cross Roads I bought new now with 76k miles. Started out using 10W40 and switched to 20W40 when it came out and always with the Amsoil filter. I run between 8 & 10k between oil changes. It uses zero oil between changes and still sounds and runs new. My last bike was a 2003 Suzuki Intruder 1500. I traded it in on my current bike with 113k miles on it and it had the same oil change treatment. Still sounded and ran like new when I traded it. Either engine or clutch had ever been touched. Yeah, Amsoil is all I use. And with extended oil changes it also save me money. How can you beat that!
Reviewed by SpeedB:
Had used the Amsoil 15w-40 motorcycle oil before. Switched to another brand of oil, but it was a lighter weight of oil. Then I seen Amsoil came out with the 20w-40 motorcycle oil. Victory recommends the 20w-40. With the extreme conditions (heat) here in AZ. I figured it should be better to run what weight the manufacturer recommended. Been happy with the Amsoil in the bike.
Reviewed by mule:
use for a 2016 Indian chieftain
this is a friends bike I suggested he switch to amsoil products
he is very
impressed with this says his bike runs cooler and shifts better with less motor / transmission noise
Reviewed by Ed:
Have used AmsOil the past 35+ years. Why use any else when I can use the best! I have complete and total confidence in the product. High temps, low temps.....AmsOil keeps me on the road!!!
Reviewed by Seanco:
This is the best oil for my Victory. I ride almost every day, everywhere. I need an oil I can trust to take good care of my bike.
Reviewed by Moose:
So far gained 1 mpg and the transmission shifts much smoother than before!
Reviewed by Donny:
This stuff is so good, Was on trip with my brother thru CA AZ To Utah on my Indian Air Cooled .The Temp was anywhere between 107-118. Never had a heating problem and never had to add oil. This oil is the best hands down.
Reviewed by Floki:
On the Victory Forums this is always a huge debate. What oil do you use? I went with one I trusted. Bike runs smooth and cool.
Reviewed by Vinnie:
Amsoil MC oil is the only oil I can completely trust to protect my Indian motorcycle while it's running but to protect it from rust while it sits during the winter months.
Reviewed by None:
Have used this for every oil change since the dealership 500 mile break in that they paid for. Cycle has shifted better since the change to amsoil.
Reviewed by Larry:
I have used Amsoil in my motorcycles since 2012, and have experienced smoother, quieter idling engine, smoother shifting and better gas mileage. I currently own a 2017 Indian Roadmaster, and have not been disappointed with Amsoil products as I'm getting the same results in the Indian, plus it seems to run cooler. Thank you for great products.
Reviewed by Coastal:
I've used this oil for my Victory for a few years now and the air cooled beast runs cooler and smoother. Best oil on the market.
Reviewed by Ed:
Every thing works smother & quieter.
Reviewed by Bill's Vision:
It keeps my Vision running awesome!
Reviewed by X:
It seems to make the engines run cooler and shift smoother
Reviewed by FoFo:
I cannot express how well this oil performs. It provides smooth shifting and has actually quieted my tranny down considerably. There is also zero burnoff. Love this oil.
Reviewed by The Pipers Pilot:
Simply a great product. Made my bike runs do much smoother with less engine knock.
Reviewed by Small Block:
Use this product in my Yamaha V Star 950. Excellent performance from this oil.
Reviewed by Mopar11-810:
Use this oil in my bike and it stands up well to the extreme heat that my bike puts on it.
Reviewed by Chuck:
Improved the performance and gas mileage on my motorcycle.
Reviewed by Doug:
I use the 20W-40 in my Indian Motorcycle. Always preferred Amsoil with all of my bikes, previous and current. Good pricing, good product.
Reviewed by Allan:
This grade of oil is the only one Indian Motorcycles allows in their machines. Amsoil is the only major producer of this oil. Also the durability and long lasting quality of this product is what makes me happy.
Reviewed by ROB:
I have a Victory Cross Country Tour. Ams oil is the only oil that gives me quiet starts and
consistent clutch feel. Its been the only oil that has allowed me to go 5000 miles between changes.
You can really tell the difference with Ams Oil....
Canada
United States
Reviewed by jeffery glenn evans:
only one for my bike
best of the best hands down ams oil