AMSOIL 20W-50 100% Synthetic V-Twin Motorcycle Oil

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is a premium, multifunctional product that fulfills the unique demands of motorcycles, including air-cooled engines like Harley-Davidson V-twins. It provides exceptional protection against high temperatures, ensuring optimal performance in extreme conditions. The oil maintains its viscosity, reducing wear and deposits, and is highly effective in protecting against rust, which is critical for motorcycles prone to rust from storage and short trips. Its formulation is free of friction modifiers, allowing for smooth shifting and effective wet-clutch performance. This oil is particularly beneficial for bikes often subjected to rallies or parade routes, where engines reach high temperatures with little airflow.

5.0
star rating from
967
total reviews

This product is available in:

Individual Quart Bottles
Cases of 12 Quart Bottles
Individual Gallon Jugs
Cases of 4 Gallon Jugs
Individual 55 Gallon Drums
275 Gallon Totes
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Product Code:

MCVQT-EA

AMSOIL 20W-50 100% Synthetic V-Twin Motorcycle Oil Review by Dave Mann

AMSOIL 20W-50 100% Synthetic V-Twin Motorcycle Oil Description

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is a premium, multifunctional product that fulfills the unique demands of motorcycles, including air-cooled engines like Harley-Davidson V-twins. It provides exceptional protection against high temperatures, ensuring optimal performance in extreme conditions. The oil maintains its viscosity, reducing wear and deposits, and is highly effective in protecting against rust, which is critical for motorcycles prone to rust from storage and short trips. Its formulation is free of friction modifiers, allowing for smooth shifting and effective wet-clutch performance. This oil is particularly beneficial for bikes often subjected to rallies or parade routes, where engines reach high temperatures with little airflow.

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil

High-Performance Lubricant for Engines, Transmissions and Primary Chaincases

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil is a premium oil designed for those who demand the best protection 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 Oil is multi-functional and fulfills the requirements of both domestic and foreign motorcycles.

AMSOIL 20W-50 100% Synthetic V-Twin Oil Motorcycle Oil
  • Resists extreme heat
  • Retains viscosity for excellent wear protection
  • Convenience of one lubricant for all three sumps

Reduces Wear and Deposits

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. It contains a heavy treatment of anti-wear additives to reduce wear regardless of operating conditions. After 1,000miles (1,609 km) of dyno testing during which oil temperature reached 300ºF (149ºC)and cylinder temperature reached 421ºF (216ºC), AMSOIL V-Twin Oil fought piston ring deposits to prevent sticking and protected against piston scuffing for maximum compression and power (see image).

Protects Transmissions and Primaries

AMSOIL V-Twin Oil delivers exceptional protection in transmissions and primary chaincases. It is shear stable and resists thinning from mechanical activity. AMSOIL20W-50 V-Twin Motorcycle Oil performs like a gear lube without the negative effects of extreme-pressure additives. It resists viscosity breakdown 6X better than Harley-Davidson SYN3 for improved protection against compensator and transmission gear wear (based on testing of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil and Harley-Davidson Screamin’ Eagle SYN3 purchased on 3/19/19 in the CEC L45-KRL, ASTM D445 test).

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 V-Twin Oil contains special anti-rust agents. It passes the ASTM D1748 humidity cabinet rust test, demonstrating superior rust protection to help your engine achieve maximum performance and long life.

After 1,000 miles (1,609 km) of extreme-heat dyno testing, AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil protected against piston-ring sticking and piston scuffing for maximum compression and power.

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.

TYPICAL TECHNICAL PROPERTIES

AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil (MCV)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 18.5
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 132.8
Viscosity Index (ASTM D2270) 156
Pour Point, °C(°f) (ASTM D97) -41(-42)
Flash Point, °C(°f) (ASTM D92) 228(442)
High-Temperature/High-Shear Viscosity (ASTM D5481), cP 5.6
Four-Ball Wear Test (ASTM D4172), Scar, mm 0.37
FZG (ASSTM D5182), Load Stage Pass (Wear in mm) 12+ (0mm)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 4.2
Rust Test - Humidity Cabinet (ASTM D1748) No Rust, Pass
Total Base Number (TBN) (ASTM D2896) 11.6

APPLICATIONS

Use in motorcycles that require 20W-50 motorcycle oil and any of the specifications listed below, including those made by Harley-Davidson and Buell. Suitable for use in motorcycles that require an API CH-4 oil.

  • JASO MA/MA-2
  • API SL, SH, SG, CG-4, CF
  • 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 Oil.

TECHNICAL SERVICES

For immediate answers to your technical questions call (715) 399-TECH (8324) between 8 a.m. and 5 p.m. Central time or email tech@amsoil.com.

SERVICE LIFE

Use for 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 (32,187 km) or one year, whichever comes first. If not using an AMSOIL Motorcycle Oil Filter, 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.

AMSOIL PRODUCT WARRANTY

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 complete information visit AMSOIL.com/warranty.aspx.

HEALTH & 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 at AMSOIL.com or upon request at 715-392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

Reviews

5

star rating

95 Evo Harley

Have carburetor 95 Evo Electraglide. 88,000 miles. Change oils at 5000 mile interval. Sent in oil sample in October. All tested out good.

5

star rating

Perfect

Excellent product

5

star rating

HARLEY

Use this in my 2015 Harley from the time I got it new.

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