Amsoil 100% Synthetic Extended Life Motor Oil SAE 10W-40

Extended Protection Motor Oil!

The AMSOIL 100% Synthetic Extended-Life Motor Oil SAE 10W-40 is a premium synthetic engine oil engineered for modern gasoline engines and designed to deliver extended protection, exceptional cleanliness and long service life. Its advanced synthetic base oils and boosted additive package help engines resist breakdown, minimize deposits and neutralize acids — allowing confident performance for extended drain intervals (up to ~20,000 miles or one year under normal service). 

• Extended Drain Capability — engineered to support long service intervals (up to about 20,000 miles or one year under normal service), reducing the frequency of oil changes. 
• Resists Oil Breakdown — maintains viscosity and performance under high heat and stress better than conventional oils, helping prevent thickening and oxidation. 
• Keep Engines Clean — fortified with a boosted additive package that helps neutralize acids and resist sludge, corrosion and carbon deposit formation for longer engine life.
• Protects Against LSPI — formulated to guard against low-speed pre-ignition (LSPI), a harmful condition common in modern gasoline direct-injection engines. 
• Superior All-Temperature Protection — flows readily at low temperatures for better cold starts and maintains a strong protective film at high running temperatures. 
• Compatible with Other Oils — can be mixed with conventional and other synthetic oils, though mixing will shorten the oil’s life and reduce extended-life benefits. 

🛠️ How to Use

1. Check your owner’s manual to confirm SAE 10W-40 is the recommended viscosity for your engine. 
2. Warm up the engine to improve old oil flow before draining. 
3. Drain existing oil and replace the filter to ensure a clean system before filling.
4. Pour AMSOIL 100% Synthetic Extended-Life 10W-40 into the engine up to the manufacturer’s specified capacity. 
5. Start and check oil level after the engine runs a few minutes to ensure proper fill. 
6. Monitor oil condition and follow recommended intervals or extended intervals based on operating conditions. 

Ideal for drivers seeking robust protection, extended drain capability and cleaner engines, the AMSOIL 100% Synthetic Extended-Life Motor Oil SAE 10W-40 is built to provide peace of mind and added convenience for everyday driving and demanding conditions alike.