20W-50 100% Synthetic 4T Performance Motorcycle Oil

   20W-50 100% Synthetic 4T Performance Motorcycle Oil

Excellent Lubrication – Reduces Heat and Wear
AMSOIL 4T Performance is formulated with premium synthetic base oils, proven to offer superior lubrication compared to conventional mineral oils. Its smaller, more uniform molecular structure enhances heat dissipation and forms a durable protective film that resists high temperatures. This helps minimize engine wear and maintain optimal viscosity under extreme heat—preventing power loss due to thermal breakdown.

Confident Riding Experience
Specifically designed for motorcycles with wet-clutch systems, AMSOIL 4T Performance ensures smooth gear shifting and reliable clutch engagement. It effectively controls heat in the gearbox, prevents clutch slippage and scuffing, and extends clutch life—allowing riders to enjoy a confident and consistent riding experience.

Keeps Engines Clean
Motorcycle engines run at high RPM and high temperatures, making them susceptible to sludge and deposit formation. These contaminants can impair performance. AMSOIL 4T Performance includes high-quality detergents that clean existing deposits, maintain engine cleanliness, and neutralize sulfuric acid buildup—ensuring peak engine performance over time.

Minimizes Oil Consumption
A primary cause of oil loss in motorcycle engines is volatilization due to high heat. AMSOIL 4T Performance is formulated with very low volatility, with a NOACK volatility rating of just 3.6%, compared to over 10% for many conventional oils. This results in significantly less oil burn-off, providing peace of mind to riders.

Recommended Applications

AMSOIL 20W-50 4T Performance Synthetic Motorcycle Oil is ideal for a wide range of motorcycles—from small displacement bikes to big bikes—with air- or liquid-cooled engines requiring 20W-50 viscosity. It is also suitable for transmissions and clutches that require the following specifications:

• API SN, SM, SL, SJ, SH, SG

• JASO MA / MA2 (for motorcycles with wet-clutch systems)

Service Life

Follow the manufacturer’s maintenance schedule, typically recommending oil changes every 5,000–6,000 kilometers or every 6 months, whichever comes first.