High-Performance lubricant for engines and transmissions. AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil provides Indian and Victory motorcycle owners peace of mind, confidence and
security. AMSOIL presents maximum protection and performance from a full synthetic oil. Premium alternative to higher-priced manufacturer-branded semi-synthetic oils.
JASO MA, API SM, ILSAC GF-4
Package sizes include:
1-Quart Bottle
1-Quart Bottles (case of 12)
Use AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil in motorcycles that require 20W-40 motorcycle oil and any of the specifications listed below, including those made by Victory* and Indian*.
• JASO MA
• API SM
• ILSAC GF-4
A premium oil designed for those who demand the absolute best lubrication for their motorcycles. It is the result of extensive research and is specially formulated to excel in all areas unique to motorcycles, including the high temperatures of air-cooled engines, wet-clutch lubrication, extreme-pressure regions of gears and chains and rust protection. AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is multi-functional and engineered for Victory® and model-year 2013 and newer Indian® motorcycles.
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is engineered to protect critical components in high-heat conditions. It exceeds the standard for high-temperature film strength to deliver excellent wear protection (see graph) and contains a heavy treatment of anti-wear additives to reduce wear regardless of operating conditions. AMSOIL 20W-40 is thermally (heat) stable and contains maximum levels of oxidation-inhibitor additives. It is extremely resistant to breakdown and is engineered to prevent damaging sludge and carbon deposits for superior engine cleanliness.
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is shear stable and resists thinning from mechanical activity. It performs like a gear lube without the negative effects of extreme-pressure additives, such as poor wet-clutch performance.
Motorcycles are prone to rust from storage, humidity and short drives. Rust can cause major damage, such as uncontrolled wear, compression loss and blow-by. Good rust protection, however, comes by design and is not natural to motor oils. Unlike many motorcycle oils, AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil contains special ant-irust agents, providing outstanding protection against rust and corrosion.
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil meets the requirements for emission-system protection and is designed for use in motorcycles with catalytic converters.
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil delivers the confidence of quiet, smooth shifting and positive clutch engagement. It controls heat and helps prevent slippage and glazing, while its high TBN helps improve clutch life by resisting the acids that can degrade clutch material.
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is compatible with other conventional and synthetic motor oils; however, mixing oils may shorten the oil's life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL Synthetic V-Twin Motorcycle Oil.
For on-road use in engines and transmissions:
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil and AMSOIL Ea® Motorcycle Oil Filters are capable of providing premium protection for up to 2X the motorcycle manufacturer-recommended change interval or one year, whichever comes first. Change other brand oil filters at standard intervals.
For off-road use in engines and transmissions:
Change AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil at the standard motorcycle manufacturer-recommended change interval.
For racing or modified engines:
No change interval recommendation is made; oil changes are at the owner's discretion.
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).
Click here to view the MSDS Data Sheet for AMSOIL MVI.
Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
| TYPICAL TECHNICAL PROPERTIES | |
| AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil (MVI) | |
| Kinematic Viscosity @ 100°C, cSt (ASTM D445) | 14.0 |
| Kinematic Viscosity @ 40°C, cSt (ASTM D445) | 105 |
| Viscosity Index (ASTM D2270) | 135 |
| Flash Point °C (°F) (ASTM D92) | 232 (450) |
| Fire Point °C (°F) (ASTM D92) | 258 (496) |
| Pour Point °C (°F) (ASTM D97) | -41 (-42) |
| High Temperature/High Shear Viscosity (ASTM D5481 @ 150°C , 1.0x 106 s-1), cP | 4.2 |
| Four Ball Wear Test (ASTM D4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour),Scar, mm | 0.41 |
| Noack Volatility, % weight loss (g/100g) (ASTM D5800) | 2.7 |
| Foam (ASTM D892, Sequence I, II & III) | 0/10/0 |
| Total Base Number | 11.6 |
Also use AMSOIL Gasoline Stabilizer, in addition to fresh Oil & Filter
Product Name: 20W-40 Synthetic V-Twin Motorcycle Oil (MVI)
Current Rating: 4.99out 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.
Canada
United States
Reviewed by jeffery glenn evans:
only one for my bike
best of the best hands down ams oil