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AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil
AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil
AMSOIL 15W-60 Synthetic V-Twin Motorcycle Oil
AMSOIL 15W-60 Synthetic V-Twin Motorcycle Oil
AMSOIL SAE 60 Synthetic V-Twin Motorcycle Oil
AMSOIL SAE 60 Synthetic V-Twin Motorcycle Oil
AMSOIL V-Twin Oil Change Kit
AMSOIL V-Twin Oil Change Kit
AMSOIL Synthetic V-Twin Transmission Fluid
AMSOIL Synthetic V-Twin Transmission Fluid
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AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil
AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil
Product Details
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.
Product Description
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).
Helps Prevent Wear
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.
Product Size
Code Package Size Unit of Measure Product
MCVQT (MCVQT-EA) Quart Each 20W-50 Synthetic V-Twin Motorcycle Oil
MCVQT (MCVQT-CA) Quart Case of 12 20W-50 Synthetic V-Twin Motorcycle Oil
MCV1G (MCV1G-EA) Gallon Each 20W-50 Synthetic V-Twin Motorcycle Oil
MCV1G (MCV1G-CA)
Gallon
Case of 4 20W-50 Synthetic V-Twin Motorcycle Oil
MCV30 (MCV30-EA) 16-Gallon Keg Each 20W-50 Synthetic V-Twin Motorcycle Oil
MCV55 (MCV55-EA) 30-Gallon Drum Each 20W-50 Synthetic V-Twin Motorcycle Oil
MCV27 (MCV27-EA) 275-Gallon Tote Each 20W-50 Synthetic V-Twin Motorcycle Oil
Technical Information
Extra Information
What AMSOIL motor oils are recommended for Harley-Davidson motorcycles?
AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil and SAE 60 Synthetic V-Twin Motorcycle Oil are the most commonly recommended oils for Harley-Davidson applications. Check the AMSOIL Motorcycle Product Lookup  for specific recommendations.   
What are the recommended AMSOIL transmission and primary chaincase lubricants for a Harley-Davidson Big Twin?
For the newer Big Twins, AMSOIL recommends 20W- 50 Synthetic Motorcycle Oil (MCV) in the engine, transmission and primary chaincase. As secondary recommendations, Synthetic V-Twin Transmission Fluid (MVT) may be used in the transmission, and Synthetic V-Twin Primary Fluid (MVP) may be used in the primary chaincase. In older Harleys such as Knuckleheads, Panheads and Shovelheads, AMSOIL recommends SAE 60 Synthetic V-Twin Motorcycle Oil (MCS).
How can AMSOIL recommend 20W-50 Synthetic Motorcycle Oil for use in the primary chaincases and transmissions of certain motorcycles?
AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is engineered with premium additive packages specifically designed to provide high performance in motorcycle engines, transmissions and primary chaincases. However, if a customer does not want to use it in all three sumps, AMSOIL Synthetic V-Twin Transmission Fluid (MVT) and AMSOIL Synthetic V-Twin Primary Fluid (MVP) are secondary recommendations.
AMSOIL Primary and Transmission Fluids:
AMSOIL 20W-50 Motorcycle Oil - Case of 12 Quarts
AMSOIL 20W-50 Motorcycle Oil - Case of 12 Quarts
Phone Orders: (800) 956-5695 - M-F 9am-5pm Central Time - Customer Referral Number: 1702935
AMSOIL DEALER - Jari P Marjanen
Serving Customers Nationwide - Call 907-982-7115