AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil
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.
- Excellent high-stress, high-rpm endurance
- Increased rust and corrosion protection
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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.
- Excellent high-stress, high-rpm endurance
- Increased rust and corrosion protection
AMSOIL 25W-40 Synthetic Blend Marine Engine Oil
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.
- Excellent high-stress, high-rpm endurance
- Increased rust and corrosion protection
Protects Against Wear
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 for maximum life.
Excellent Anti-Rust Performance
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.
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, sterndrives (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
TYPICAL TECHNICAL PROPERTIES
25W-40 Synthetic Blend Marine Engine Oil (WCM)
APPLICATIONS AND RECOMMENDATIONS
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
TECHNICAL SERVICES
For immediate answers to your technical questions call (715) 399-TECH (8324) between 8 a.m. and 5 p.m. Central time or email tech@amsoil.com.
SERVICE LIFE
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.
PRODUCT 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. For complete information visit AMSOIL.com/warranty.aspx.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at 715-392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.
Great product. Excellent customer service
Seems to perform better than oem oil. Fast shipping.
Excellent
Originally I was using too light of an oil and I went to this 25W40 and was very happy with the oil pressure increase and now it doesn’t seem to go through any oil. Big block Chevy
BEEN USING THIS 25W-40 SINCE it has been offered
Great Oil. Have used it on my 1998 7.4 MPI Bravo 3 since it was first offered. Very little oil consumption. No smoke; engine have been running great with good oil pressure at idle at operating temperature.
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