Amsoil 20W50 Synthetic V-Twin Motorcycle Oil (MCV)

Amsoil 20W-50 V-Twin motorcycle oil

Advanced multi-functional formula for both domestic and foreign motorcycles. Excellent in air-cooled motorcycle engines due to high heat resistance. Can be used in engines, transmissions and the primary chaincase. Not recommended where an API GL-4 or GL-5 gear oil is required.

Advanced multi-functional formula for both domestic and foreign motorcycles. Excellent in air-cooled motorcycle engines due to high heat resistance. Can be used in engines, transmissions and the primary chaincase. Not recommended where an API GL-4 or GL-5 gear oil is required.

Use in motorcycles that require 15W-50 or 20W-50 motorcycle oil and any of the specifications listed below, including those made by Harley-Davidson*, Buell*, Ducati*, Aprilia*, BMW* and Triumph*.

JASO MA/MA-2 • API SG/SL/CF/CG-4 • ISO-L-EMA2

Save $30 on a case when you call 800-579-0580!

Printable Data Sheet for AMSOIL 20W50 Advanced Motorcycle Oil (PDF).

Package sizes include:

1-Quart Bottle
1-Quart Bottles (case of 12)
1-Gallon Bottle
1-Gallon case of four
55-Gallon Drum

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Product Overview

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is 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 such as Harley-Davidson* V-twins, wet-clutch lubrication, extreme-pressure regions of gears and chains and rust common to short trips and storage. AMSOIL Synthetic V-Twin Motorcycle Oil is multi-functional and fulfills the requirements of both domestic and foreign motorcycles.

AMSOIL, the leader in synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics,® to do the best job protecting your motorcycle.

Reduces Wear and Deposits

AMSOIL Synthetic V-Twin Motorcycle Oil contains a heavy treatment of anti-wear additives to reduce wear regardless of the operating conditions. It is thermally (heat) stable and contains maximum levels of oxidation inhibitor additives. After 250 hours (13,647 miles) on an engine dyno, AMSOIL Synthetic V-Twin Motorcycle Oil eliminated piston scuffing and wear for long engine life and maximum power (see image).

Piston like new 13000 miles harley

Withstands Extreme Heat

Big, powerful V-twin engines run extremely hot, especially in summer during stop-and-go rally or parade traffic. High heat breaks down oil formulated for standard service, inviting wear and performance-robbing deposits. AMSOIL Synthetic V-Twin Motorcycle Oil is formulated with naturally heat-resistant synthetic base oils that resist oxidation in extreme heat. Its unique additive system helps keep engines clean and running efficiently in the toughest riding conditions.

Extreme-Pressure Protection for Gears and Chains

AMSOIL Synthetic V-Twin Motorcycle Oil delivers exceptional protection in transmissions and primary chaincases. It is absolutely shear stable and will not thin out from mechanical activity. AMSOIL 20W-50 V-Twin Motorcycle Oil performs like a gear lube without the negative effects of extreme-pressure additives. In the FZG gear test, AMSOIL achieved a perfect score with a “zero” wear rating.

Delivers Superior Rust Protection

Motorcycles are prone to rust from storage, humidity and short drives. Rust can cause major damage such as roller bearing failure, 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 Motorcycle Oil contains special antirust agents. It passes the ASTM D1748 humidity cabinet rust test, demonstrating superior rust protection to help your engine achieve maximum performance and long life.

  • Resists extreme heat
  • Retains viscosity for excellent wear protection
  • Convenience of one lubricant for all three sumps

Provides Excellent Wet-Clutch Performance

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil contains no friction modifiers and promotes 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.

APPLICATIONS

Use in motorcycles that require 15W-50 or 20W-50 motorcycle oil and any of the specifications listed below, including those made by Harley-Davidson*, Buell*, Ducati*, Aprilia*, BMW* and Triumph*.

JASO MA/MA-2 • API SG/SL/CF/CG-4 • ISO-L-EMA2

Do not use where an API GL-4 or GL-5 gear oil is required.

COMPATIBILITY

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is compatible with other synthetic and conventional motor oils. Mixing AMSOIL oils with other oils, however, will 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 Motorcycle Oils.

SERVICE LIFE

Recommended for use up to twice the motorcycle manufacturer change interval (miles/hours) or one year, whichever comes first, in engines, transmissions and primary chaincases. For Big Twin Harley-Davidson transmissions only, follow the Harley-Davidson recommended drain interval for synthetic oil of up to 20,000 miles or one year, whichever comes first. When using an engine filter other than AMSOIL Ea®, change the filter at standard intervals.

For off-road use, change AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil at motorcycle manufacturer-recommended intervals.

Racing or modified engines are excluded from extended drain interval recommendations. Oil changes are at the owner’s discretion.

WARRANTY SECURE™

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is Warranty Secure, keeping your factory warranty intact. AMSOIL 20W-50 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/warrantysecure.

Warranty Protected

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended applications 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 AMSOIL-engineered for use in the applications shown.

Reviews for 20W-50 V-Twin Synthetic Motorcycle Oil

 

Roadmaster oil

By  JERRY,  a  Verified Buyer  from  Vancouver wa.  on  November 02, 2023
Amsoil or as others call it snake oil holds up to the conditions I put it through long steady rides in hot weather, onto town and stop and go traffic ,have Sent it on for to be checked out for motor e wear and other signs of wear always comes back favorable. I tell all who will ask good stuff get some

Great oil ,fast shipping, low price need I say more

By  Neto,  a  Verified Buyer  from  Santa barbara   on  October 30, 2023
I thought there was better till I tried this oil out on my very soft tail ,I can feel and hear the difference. Smoother shifting and the engine is quieter The engine is quiet but the pipes are still loud as heck but thats the point RIGHT !!!

 

Love this oil!!@

By  JEFFREY,  a  Verified Buyer  from  Reading pa  on  October 24, 2023
This oil did what they said it would. It’s hard to find a product that really works like they say it should. I will keep buying this over an over again .I definitely will recommend this to everyone!!

Amsoil v-twin 20w50

By  TIM,  a  Verified Buyer  from  Hayward WI   on  October 24, 2023
I believe this oil is everything they say it is, my 114 m8 runs great on it quieter and smoother. Will be using the primary and trans. Oil also It gives me piece of mind knowing I’m running a superior oil in my Harley!

Great product

By  BRIAN,  a  Verified Buyer  from  Mt Uniacke  on  October 01, 2023
Since using you oil on my 103 I noticed when the bike got hot it still had oil pressure . I used Harley synthetic oil from purchase oil my 2013 when it got hot I had 0 oil pressure obviously your product is better.

’21 Indian Roadmaster

By  MITCH,  a  Verified Buyer  from  Mississippi  on  September 14, 2023
I’ve been running this oil in my ’21 Indian Roadmaster since new. Now at 42k miles and no problems at all. I can buy this oil, a high quality WIX oil filter, and get the copper crush washers in bulk cheaper than I can buy the semi-synthetic Indian oil kits for. Much better quality for the same cost.

Amsoil Longevity Usage

By  Redman,  a  Verified Buyer  from  Western Mass  on  September 05, 2023
I have been an Amsoil user on my vehicles for over 20 years, when it comes to my two motorcycles, it is the ONLY oil that has ever been used on them, my older bike has over 80k miles and still runs great, my newer bike has over 45k and still runs great. Quality and price wise in my opinion Amsoil is #1!!

Best oil

By  DON,  a  Verified Buyer  from  Houston, TX  on  August 27, 2023
This oil lives up to it’s well earned reputation as the best oil on the market. I consider my Harley to be an expensive investment and will only ever use the best products available. For lubrication that is Amsoil

Best Product Out There

By  JASON,  a  Verified Buyer  from  Moncton, NB  on  July 26, 2023
Amaoil is the original synthetic and the leader in quality. I use nothing but Amsoil in all my vehicles from my truck to my ATV.

The only oil trust for my Harley

By  TimU,  a  Verified Buyer  from  Clinton Township, Michigsn  on  July 13, 2023
My FLHTCU now has 72000 miles on it. From the first 600-mile oil change, this is the only oil I have used. My oil is changed every 5000 miles. Every time I change the oil, I submit a sample for analysis. Each time, it comes back clean. At my last full service, I did a cylinder leak-down test, and the results returned 5%. Outstanding for an air-cooled engine at 70000 miles! Best oil on the market.

Great Oil

By  JOE,  a  Verified Buyer  from  Georgia  on  June 26, 2023
This oil is excellent. Have never had a oil related problem with Amsoil . I ride a lot and with sitting in traffic or having to go 5 miles per hour in bumper to bumper traffic with a air cooled motor i have never had the engine knock from over heating.

Archived Data

Provides Extreme Pressure Quality Protection for Gears and Chains
With AMSOIL MCV, there is no need for separate transmission or primary chaincase lubricants. It is absolutely shear stable and will not thin out from mechanical activity. AMSOIL MCV performs like a gear lube without the negative effects of extreme pressure additives. In the FZG gear test, AMSOIL MCV achieved a perfect score with a “zero” wear rating (see photo below).

FZG Gear Test (ASTM D-5182)
AMSOIL 20W-50 (MCV)
FZG Gear Test (ASTM D-5182)
Motul 300V 15W-50
Lucas failed more than one test. See the Motorcycle oil study.

Delivers Superior Rust Protection
Motorcycles are prone to rust from storage, humidity and short drives. Rust can cause major damage such as roller bearing failure, uncontrolled wear, compression loss and blow-by. Good rust protection, however, comes by design and is not natural to engine oils. Unlike many motorcycle oils, AMSOIL MCV contains special anti-rust agents. It passes the ASTM D-1748 humidity cabinet rust test and clearly demonstrates superior rust protection (see photos below).

Rust Test ASTM D-1748
AMSOIL 20W-50 (MCV)
Rust Test ASTM D-1748
Castrol GPS 20W-50

Provides Excellent Wet Clutch Performance
AMSOIL MCV contains no friction modifiers and promotes smooth shifting and positive clutch engagement. AMSOIL MCV controls heat and prevents slippage and glazing, and its high TBN resists acids that can degrade clutch material, helping improve clutch life.

For off-road use, change AMSOIL MCV at motorcycle manufacturer intervals.

Racing or modified engines are excluded from extended drain interval recommendations. Oil changes are at the owner’s discretion.

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