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.

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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.

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Resists Viscosity Breakdown

AMSOIL Resists Viscosity Breakdown 6X Better Than Harley-Davidson SYN3 For Improved Protection Against Compensator And Transmission Gear Wear.

 

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).

PROTECTS TRANSMISSIONS & 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.