AMSOIL V-Twin Synthetic Primary Chaincase OilThis full-synthetic Primary Chaincase Oil is ideal for Harley Davidson, Indian motorcycles (made before 2013) and Triumph motorcycles. For Harley models, our Synthetic 20W-50 Motorcycle Oil is still our first choice for primary chaincases, but this product is a great alternative.

AMSOIL Primary Chaincase Oil Package Sizes:

  • Single US Quart Bottles
  • Case of 12 US Quart Bottles


We can sell AMSOIL V-Twin Synthetic Primary Chaincase Oil at the lowest prices in Canada or the US. Request a wholesale price list using the contact form on your right.

V-Twin motorcycle owners often ask for an oil specifically designed for primary chaincases and AMSOIL was listening. This 100% synthetic primary oil delivers the performance and protection that you expect from AMSOIL synthetic motorcycle oils.

Suitable Applications For AMSOIL V-Twin Synthetic Primary Chaincase Oil

This product can be used in the primary chaincases of the following motorcycle models:

  • Harley-Davidson (all model years)
  • Triumph
  • Indian motorcycles built before the 2013 model year

An Ideal Substitute for the Following Motorcycle Primary Chaincase Oils

  • Harley-Davidson Formula Plus Transmission and Primary Chaincase Lube
  • Drag Specialties Primary Oil
  • Klotz Techniplate Primary Chain Case Lubricant
  • Lucas Primary Chaincase Oil
  • Milwaukee Twins Primary Oil
  • Red Line V-Twin Synthetic Primary Chaincase Oil
  • RevTech Primary Lube
  • Torco V-Series Primary Chaincase
  • Twin Power Primary Chain Case Lubricant

Should I Use AMSOIL Primary Oil or 20W-50 in My Harley Chaincase?

You can use either product with outstanding results. Many Harley-Davidson owners prefer to buy AMSOIL 20W-50 Synthetic Motorcycle for the convenience of using one product in the engine, transmission and primary chaincase. AMSOIL 20W-50 is designed to provide the utmost performance and protection in “all three holes”, so this is 100% acceptable.

Dependable Clutch Engagement

AMSOIL V-Twin Synthetic Primary Chaincase Oil is formulated to optimize clutch operation. Expect improved clutch operation as you ease away from standing starts. This product also prevents clutch slippage during hard acceleration and under exceptionally hot operating temperatures.

Protects Against Metal-to-Metal Wear

Powerful wear control ingredients prolong the life of chains, gears and bearings. A shear-stable synthetic base oil maintains consistent viscosity over long mileage and heavy operation, so chaincase components last longer.

Provides Cooler Primary Chaincase Temperatures

The hallmark of all AMSOIL V-Twin products is the ability to not only withstand hot operating conditions, but to actually promote cooler operation. This chaincase oil also resists thinning out under hot conditions, so protection is never compromised.

Mixing AMSOIL V-Twin Synthetic Primary Chaincase Oil With Other Brands

AMSOIL V-Twin Synthetic Primary Chaincase Oil is compatible with other brands of conventional, semi-synthetic and synthetic primary chaincase fluid. While you can safely mix AMSOIL Primary Chaincase Oil with other brands, this will reduce the drain interval and performance capabilities of this product.

Service Life of AMSOIL V-Twin Synthetic Primary Chaincase Oil

AMSOIL Synthetic Primary Chaincase Oil should be changed every 16,000 kilometres (10,000 miles) or after one season of use.


AMSOIL V-Twin Synthetic Primary Chaincase Oil (MVP)

ViscositySAE 90
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)18.7
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)147.1
Viscosity Index (ASTM D-2270)144
Pour Point °C (°F) (ASTM D-97)-37 (-35)
Flash Point °C (°F) (ASTM D-92)244 (471)
Fire Point °C (°F) (ASTM D-92)256 (493)
Four Ball Wear Test (ASTM D4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour), Scar, mm0.39
JASO T-904 Friction TestMA/MA2 Pass
AMSOIL V-Twin Synthetic Primary Chaincase Oil
A 100% synthetic primary oil for Indian motorcycles made before 2013, Triumph motorcycles and all Harley-Davidson models.
Manufacturer: AMSOIL
Model: V-Twin Synthetic Primary Chaincase Oil
Product ID: MVP