AMSOIL 20W-40 V-Twin Fully Synthetic Engine Oil

AMSOIL 20W-40 V-Twin is a fully synthetic oil designed for V-twin motorcycles that need 20W-40 protection—especially Victory and Indian applications. It’s formulated to control heat, reduce friction and wear, deliver smooth wet-clutch performance, and provide outstanding rust and corrosion protection for bikes exposed to storage, humidity and short rides.

Key Benefits

• Delivers superior rust and corrosion protection

• Catalytic-converter compatible (emission-system protection)

• Provides excellent wet-clutch performance with quiet, smooth shifting

• Controls heat and helps prevent clutch slippage and glazing

Applications (Specifications / Approvals)

Use in motorcycles that require 20W-40 motorcycle oil and any of the following:

• JASO MA

• API SM

• ILSAC GF-4

Change / Drain Interval (Service Life)

• For on-road use in engines and transmissions: When paired with an AMSOIL Ea Motorcycle Oil Filter, capable of providing premium protection for up to 2X the motorcycle manufacturer-recommended change interval or 1 year, whichever comes first (change other-brand oil filters at standard intervals)

• For off-road use in engines and transmissions: Change at the standard motorcycle manufacturer-recommended change interval

• For racing or engines modified from the original factory design: No change interval recommendation; oil changes are at the owner’s discretion

Note: Always confirm the required viscosity and specifications in your owner’s manual before use.