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

AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is tailored to meet the unique demands of V-Twin motorcycle engines, especially those in Indian and Victory models. This oil offers superior protection in high-temperature conditions typical of air-cooled engines and is formulated to handle the extreme pressures in gears and chains. It reduces friction, heat, and wear, thus enhancing engine performance and longevity. The oil is thermally stable, preventing breakdown and buildup of damaging sludge and carbon deposits. It offers excellent rust protection and is compatible with catalytic converters. In terms of clutch performance, it ensures smooth shifting and effective engagement, preventing slippage and glazing. This oil meets API SM, JASO MA, and API GL-1 specifications and is compatible with other conventional and synthetic motor oils. It is recommended for use up to twice the motorcycle manufacturer-recommended change interval or one year, whichever comes first, and is suitable for both on-road and off-road use​.

5.0
star rating from
967
total reviews

This AMSOIL product is available in:

Individual Quart Bottles
Cases of 12 Quart Bottles
Individual 55 Gallon Drums
Buy Now
Product Code:

MVIQT-EA

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

AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is tailored to meet the unique demands of V-Twin motorcycle engines, especially those in Indian and Victory models. This oil offers superior protection in high-temperature conditions typical of air-cooled engines and is formulated to handle the extreme pressures in gears and chains. It reduces friction, heat, and wear, thus enhancing engine performance and longevity. The oil is thermally stable, preventing breakdown and buildup of damaging sludge and carbon deposits. It offers excellent rust protection and is compatible with catalytic converters. In terms of clutch performance, it ensures smooth shifting and effective engagement, preventing slippage and glazing. This oil meets API SM, JASO MA, and API GL-1 specifications and is compatible with other conventional and synthetic motor oils. It is recommended for use up to twice the motorcycle manufacturer-recommended change interval or one year, whichever comes first, and is suitable for both on-road and off-road use​.

15W-60 and 20W-40 Synthetic V-Twin Motorcycle Oil

Developed by AMSOIL for use in Victory and Indian motorcycles.

AMSOIL Synthetic V-Twin Motorcycle Oil is a premium oil designed for those who demand the absolute best lubrication for their motor cycles. 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 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.

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

Reduces 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.

Higher value reflect better protection. The High-Temperature/High-Shear Viscosity Test (ASTM D5481) measures a lubricant's viscosity under severe high-temperature and shear conditions, similar to severe operating conditions experienced by motorcycles.

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), cP 4.2
Four-Ball Wear Test (ASTM D4172), Scar, mm 0.41
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 2.7
Foam (ASTM D892, Sequence I, II and III) 0/10/0
Total Base Number (TBN) (ASTM D2896) 11.6

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.

Use AMSOIL 15W-60 Synthetic V-Twin Motorcycle Oil in motorcycles that require 15W-60 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 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 V-Twin 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

For on-road use in engines and transmissions: When paired with an AMSOIL Ea® Motorcycle Oil Filter, AMSOIL 15W-60 and 20W-40 Synthetic V-Twin Motorcycle Oil 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 15W-60 and 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.

AMSOIL PRODUCT WARRANTY

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 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.

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

Read More Reviews

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

SAVE 25% As A Preferred Customer

Sign up today for 25% off all AMSOIL products and enjoy other membership perks and rewards as a preferred customer.