AMSOIL 25W-40 SYNTHETIC-BLEND MARINE ENGINE OIL

AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil: Engine Performance and Reliability

Optimal engine performance is essential for a successful day of fishing or boating. High-rpm operation and constant exposure to water invite engine wear and formation of rust and corrosion, which can reduce engine performance and life. AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil provides excellent protection against wear, rust, and corrosion, ensuring your marine engine remains reliable. This marine engine oil is Warranty Secure® and will not void your engine’s warranty.

AMSOIL 25W-40 SYNTHETIC-BLEND MARINE ENGINE OIL: Protects Against Wear

Marine engines often operate under high loads and rpm for extended periods. For example, a marine engine powering a boat at 30 mph runs at around 5,000 rpm, while an automotive engine at 60 mph runs at about 2,000 rpm. This higher stress can cause traditional automotive oils to break down and lose viscosity. AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil is designed with excellent shear stability to deliver a consistent lubricating film, guarding engine components from wear for maximum life.

AMSOIL Synthetics: Excellent Anti-Rust Performance

Marine engines are susceptible to rust and corrosion due to constant exposure to humid, wet environments. Rust on engine parts can cause significant damage, while aluminum components can corrode. Rust and corrosion can reduce engine power and eventually lead to catastrophic failure.

Good rust protection is not a natural property of motor oil; it must be designed. AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil contains powerful inhibitors that protect against rust and corrosion, ensuring excellent performance and reliability.

Key Benefits of AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil

Excellent high-stress, high-rpm endurance
Increased rust and corrosion protection
NMMA Certified

25W-40 Synthetic-Blend Marine Engine Oil: NMMA Certified

AMSOIL 25W-40 Synthetic Blend Marine Engine Oil is certified by the National Marine Manufacturers Association (NMMA) for use in four stroke outboards, inboards, stern-drives (inboard outboards), and PWCs. This high quality oil demonstrates outstanding performance, exceeding NMMA “FC-W” (Four Cycle Water) specification requirements. Its FC-W (CAT)® Registration Number is FC-11825T.

AMSOIL 25W-40: Applications and Service Life

Use AMSOIL 25W-40 Synthetic Blend Marine Engine Oil in gasoline-fueled four-stroke inboards, outboards, inboard outboards, and personal watercraft requiring any of the listed specifications, including those made by Mercury* and Mercruiser*:

API SM
NMMA FC-W Catalyst Compatible

For four-stroke outboard motors and personal watercraft, change the oil at the manufacturer recommended interval due to potential fuel dilution or water contamination. In inboard and I/O applications, change oil at two times the engine manufacturer recommended interval or once a year, whichever comes first.

AMSOIL 25W-40 Synthetic Blend Marine Engine Oil: Warranty

AMSOIL 25W-40 Synthetic Blend Marine Engine Oil is Warranty Secure®, keeping your factory warranty intact. It is a high-performance replacement for vehicle manufacturer branded products and is also backed by the AMSOIL Limited Warranty (G1363). For more information on the warranty, visit the AMSOIL website.

Choose AMSOIL 25W-40 for Your Marine Engine

Invest in AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil for optimal engine performance and protection against wear, rust, and corrosion. Keep your marine engine running smoothly and reliably, ensuring a successful day on the water.