




AMSOIL 4T PERFORMANCE 20W-50 Premium 100% Synthetic Motorcycle Engine Oil
Motorcycles are typically operated at high speeds and frequently ridden in stop-and-go traffic conditions. This increases engine temperature, especially in hot weather. High temperatures break down mineral oils and reduce their anti-wear protection capabilities. To achieve maximum performance, motorcycle owners need an oil designed to:
- Withstand extreme temperatures
- Provide anti-wear protection
- Deliver smooth and easy gear shifting
AMSOIL 100% Synthetic 4T Motorcycle Engine Oil is specially formulated for air-cooled V-twin engines, high-performance sport bikes, and daily-use motorcycles operating under the most severe conditions. The product delivers confidence and safety through superior protection and performance.
Benefits:
- Minimizes friction, temperature and wear: AMSOIL 4T features an outstanding high-temperature oil film and anti-wear additives that minimize engine and transmission wear regardless of operating conditions. The oil offers thermal stability and contains anti-oxidation additives that maintain proper lubrication even under severe conditions. AMSOIL 4T's exceptional friction reduction and heat transfer properties keep the engine cool.
- Smooth and confident gear shifting: AMSOIL 4T supports smooth shifting and positive wet clutch engagement. The oil is engineered to control temperature and prevent slipping and wear, helping extend clutch life.
- Keeps engine exceptionally clean: High-revving, hot-running motorcycle engines can accumulate sludge that reduces performance. AMSOIL 4T contains advanced detergent additives that clean critical engine components, neutralize harmful acids and reduce sludge for maximum performance.
- Helps reduce oil consumption: Volatility refers to the tendency of oil to evaporate when exposed to high temperatures. More volatile oils lead to increased oil consumption, forcing motorcycle owners to frequently top up. Volatility also causes oil viscosity to increase, negatively affecting fuel efficiency. AMSOIL 4T has low volatility, helping reduce oil consumption and maintain viscosity for optimal performance.
- Superior corrosion protection: Motorcycles are prone to corrosion due to moisture and short-trip riding. Corrosion can cause serious damage, such as uncontrolled wear, compression loss and blow-by. However, good corrosion protection is a result of design and not


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