Skip to Main Content
Shop by Vehicle
Open full size product 20W-40 Synthetic V-Twin Motorcycle Oil
Roll over image to zoom in
Roll over image to zoom in

AMSOIL 20W-40 100% Synthetic V-Twin Motorcycle Oil

Product code : MVIQT-EA

Developed by AMSOIL for use in Victory * and Indian* Motorcycles

  • Outstanding wet-clutch performance
  • Exceptional wear protection
  • Promotes cooler operation
  • Protects against rust and corrosion during storage

AMSOIL 20W-40 100% Synthetic V-Twin Motorcycle Oil



AMSOIL 15W-60 and 20W-40 Synthetic V-Twin Motorcycle Oil provides Indian and Victory riders the confidence and security that comes with receiving maximum protection and performance for their bikes. It presents a premium alternative to higher-priced manufacturer-branded oils.

MVIReduces Friction, Heat and Wear
AMSOIL 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 Synthetic V-Twin Motorcycle Oil 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.

Provides Anti-Wear Protection for Gears and Chains
AMSOIL 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.

Delivers Superior Rust Protection
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 Synthetic V-Twin Motorcycle Oil contains special anti-rust agents, providing outstanding protection against rust and corrosion.

Catalytic-Converter Compatible
AMSOIL Synthetic V-Twin Motorcycle Oil meets the requirements for emission-system protection and is designed for use in motorcycles with catalytic converters.

Provides Excellent Wet-Clutch Performance
AMSOIL 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.

APPLICATIONS
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

COMPATIBILITY
AMSOIL Synthetic V-Twin Motorcycle Oil is compatible with other conventional and synthetic motor oils. Adding other oils, however, will shorten the life expectancy of AMSOIL motor oils and reduce their 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.

SERVICE LIFE
For on-road use in engines and transmissions: When paired with an AMSOIL Ea® Motorcycle Oil Filter, AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is 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 in engines modified from the original factory design: no change interval recommendation is made; oil changes are at the owner's discretion.

WARRANTY SECURE
AMSOIL Synthetic V-Twin Motorcycle Oil is Warranty Secure, keeping your factory warranty intact. AMSOIL Synthetic V-Twin Motorcycle Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the AMSOIL Limited Warranty. For details, visit www.amsoil.com/warranty/.

Warranty Secure

HEALTH AND SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available via the Internet at www.amsoil.com or upon request at 715-392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.

*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

AMSOIL 20W-40 100% Synthetic V-Twin Motorcycle Oil

Data Bulletin

Warranty

SDS



AMSOIL 20W-40 100% Synthetic V-Twin Motorcycle Oil

  • 5 star rating
    My bike loves it.
    By  WBTat2,  a  Verified Buyer  from  Flow Rida  on  November 14, 2024
    The bike runs nice… it’s real nice.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    20/50 wt
    By  FRANK,  a  Verified Buyer  from  McMinnville OREGON  on  November 13, 2024
    I have 3 Harleys it's the only thing I use
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    20W50
    By  ROY,  a  Verified Buyer  from  TX  on  November 13, 2024
    This oil eliminates that pesky valve ticking at higher RPM, Great stuff
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great engine oil for harley
    By  MIKE,  a  Verified Buyer  on  November 09, 2024
    I have been using this oil in my harleys since 1994 and have never had an issue with regards to oiling on my bikes. I wouldn't consider using a different oil.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    +v-twin kit
    By  FRANK,  a  Verified Buyer  from  Prague ok.  on  November 09, 2024
    Always handy to get this kit for my 2008 Softail Heritage. Everything that's needed in one package.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Good stuff
    By  JEAN,  a  Verified Buyer  on  November 06, 2024
    Great oil, kidda pricey though
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    An upgrade
    By  GLENN,  a  Verified Buyer  on  November 05, 2024
    First time using this full synthetic oil along with the AMSOIL oil filter for my 2019 Indian Chieftain and right away I felt the improvement on my bike. Shifting feels smoother and engine runs better. I will definitely use this again on my next oil change.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great product
    By  FIDEL,  a  Verified Buyer  from  Lewisville Tx  on  November 04, 2024
    Great product my bike is running smooth
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Amsoil
    By  NORM,  a  Verified Buyer  from  Sherwood Park   on  November 04, 2024
    Great product at a reasonable price. Great service. Delivered right to my door the next day. It is worth buying a loyal customer membership as you save more than the cost of membership on their products.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best on the market
    By  DOMINIC,  a  Verified Buyer  on  November 03, 2024
    Amsoil in all 3 holes every time on the M8
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?