AMSOIL 10W30 Synthetic Marine Engine Oil

Description

AMSOIL Synthetic 10W30 Marine Oil stands out for its advanced synthetic base oils that resist viscosity loss under mechanical shear. This preserves a strong lubricating film that keeps engine parts protected during high-heat, high-rpm use where conventional oils tend to fail.

The formula also includes robust anti-wear additives that reduce metal-to-metal contact, helping to maintain compression and maximize power output over time. Rust and corrosion inhibitors provide defense against the damaging effects of saltwater and moisture, especially important during extended storage or inactive spells.

Certified by the National Marine Manufacturers Association (NMMA) for four-stroke outboard motors and meeting the FC-W Catalyst Compatible standard, this oil fits a wide variety of gasoline marine engines. It works well with inboards, outboards, inboard/outboards, supercharged watercraft, and personal watercraft models.

While it’s compatible for mixing with other synthetic and conventional oils, using AMSOIL 10W30 on its own delivers the best performance and longest oil life. It supports factory warranties too, making it a trusted choice for professionals and boating enthusiasts who demand dependable engine protection.

• Engineered to maintain viscosity during high-rpm operation and shear stress
• Contains anti-wear additives that protect engine components and preserve compression
• Includes rust and corrosion inhibitors tailored for marine environments and storage
• NMMA certified and meets FC-W Catalyst Compatible specifications for broad marine engine coverage
• Compatible with synthetic and conventional oils, but ideal when not mixed for maximum performance