20W-50 Synthetic V-Twin Motorcycle Oil MCV

• Resists viscosity breakdown 6X better than Harley-Davidson* SYN3* for improved protection against compensator and transmission gear wear.¹
• Resists extreme heat to help keep engines clean and efficient.
• Reduces wear and deposits for maximum engine compression and power.
• Convenience of one lubricant for all three sumps.

*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

¹Based 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.

Engineered for maximum performance in V-twin engines, motorcycle transmissions and primary chaincases. Protects against extreme heat. Wet-clutch compatible. Advanced synthetic formulation resists viscosity loss to keep critical components clean and protected.

Reduces Wear & Deposits

• Resists viscosity breakdown 6X better than Harley-Davidson SYN3 for improved protection against compensator and transmission gear wear.¹
• Contains heavy treatment of anti-wear additives to reduce wear in the most extreme operating conditions.
• Fortified with maximum levels of oxidation inhibitors to fight deposits for maximum engine compression and power.

Resists Viscosity Breakdown

AMSOIL resists viscosity breakdown 6X better than Harley-Davidson SYN3 for improved protection against compensator and transmission gear wear.¹

¹Based 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.

Withstands Extreme Heat

• Formulated with naturally heat-resistant synthetic base oils that resist oxidation in extreme summer heat and during strenuous stop-and-go rally or parade traffic.
• Unique additive system helps keep engines clean and running efficiently in the toughest riding conditions.
• Prevented piston-ring sticking and protected against piston scuffing after 1,000 miles (1,609 km) of extreme-heat dyno testing during which cylinder temperatures reached 421°F (216°C) (see video below).

Protects Transmissions and Primaries

• Shear-stable formulation resists thinning from mechanical activity to protect transmissions and primaries from wear.
• Performs like a gear lube without the negative effects of extreme-pressure additives.
• Delivers the convenience of one lubricant for all three sumps.

Trusted by Professionals

AMSOIL Synthetic V-Twin Motorcycle Oil is the top choice of hardcore riders everywhere. Here’s what some have to say.

Download Data Bulletin For Complete Product Information G3330