ONESYNTHETICS | Marcola, OR
The AMSOIL Preferred Customer Program gives you reduced prices, exclusive promotions & more. MORE INFO
Engine performance and reliability are key to a successful day fishing or boating. High-rpm operation and constant exposure to water, however, invite engine wear and formation of rust and corrosion, reducing engine performance and life. AMSOIL 25W-40 Synthetic Blend Marine Engine Oil guards against wear while delivering excellent protection against rust and corrosion. It is Warranty Secure® and will not void your marine engine’s warranty.
Marine engines operate under high loads and rpm for extended periods. On average, a marine engine powering a boat 30 mph runs at about 5,000 rpm. In contrast, an automotive engine powering a car 60 mph runs at about 2,000 rpm. Higher stress causes 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. It helps guard engine components from wear formaximum life.
AMSOIL 25W-40 Synthetic Blend Marine Engine Oil is fortified with potent inhibitors that guard against damaging rust and corrosion.
Marine engines are prone to rust and corrosion due to constant exposure to humid, wet environments. Rust on engine parts acts like sandpaper, scouring bearings, the cylinder wall, piston rings and other components, while aluminum pistons and other parts can corrode. Rust and corrosion reduce engine power and eventually cause catastrophic failure.
Good rust protection is not natural to motor oil; it comes only by design. AMSOIL 25W-40 Synthetic Blend Marine Engine Oil is fortified with potent inhibitors that guard against damaging rust and corrosion.
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 PWC. This high-quality oil demonstrates outstanding performance and exceeds the NMMA “FC-W” (Four Cycle – Water) specification requirements.
• FC-W (CAT)® Registration Number: FC-11825T
Use in gasoline-fueled four-stroke inboards, outboards, inboard/ outboards and personal watercraft that require any of the specifications listed below, including those made by Mercury* and Mercruiser*.
• API SM • NMMA FC-W Catalyst Compatible
Four-stroke outboard motors and personal watercraft: Due to potential fuel dilution or water contamination, change oil at the engine or watercraft manufacturer-recommended interval.
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 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. For details, visit AMSOIL.com/warrantysecure.
In America, the federal Magnuson Moss Warranty Act protects your freedom to choose the brand of parts and lubricants you think is best without fear of voiding your factory warranty.
Like our products, the AMSOIL Limited Warranty is built with an extra measure of protection. While some other oil companies guarantee their products only until you reach a specified mileage, we don't place restrictions on our warranty coverage based on total vehicle miles.
We stand behind our products for as long as you use them!
Shop NowAMSOIL Products are distributed exclusively through independent Dealers, people like you and me. ONESYNTHETICS Special Dealer Links will transfer you to AMSOIL.COM where you can order securely, ad we get the credit for our hard work. Join the millions of proud AMSOIL users to experience the difference and Get your amsoil products today!
Catalog or Item #
Order by Phone:
Call AMSOIL 1-800-777-7094
HOURS: M-F, 7 a.m.- 7 p.m. Central
Please use Referral #30625732
We like to save money, but we refuse to compromise performance. Sound like you? A Preferred Customer membership provides the best of both worlds, the leading edge of lubrication technology coupled with exclusive savings and benefits.
