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AMSOIL Marine Engine Oil

AMSOIL Marine Engine Oil

What are the benefits of using AMSOIL marine engine oil?

As the technology used in today’s marine applications has evolved, AMSOIL has remained ahead of the curve in performance and protection with products formulated to deliver clean engine performance and control harmful deposits, wear and rust. AMSOIL synthetic lubricants are engineered to protect your watercraft in all conditions so you can remain carefree and on the water longer.

What every fisherman should know

Premium Protection for Marine Applications

Boating and fishing are popular activities for people across the nation, with the 2013 Special Report on Fishing and Boating indicating that 47 million Americans went fishing in 2012, 46.8 million participated in a boating activity and 21.2 million owned a boat.

Boat Engine Options
Boat applications can be broken down into four primary methods of propulsion. Available in both two- and four-stroke designs, outboard motors are self-contained units (engine, gearbox and propeller/jet drive) that mount outside the hull of the boat; inboard motors are enclosed within the hull; sterndrive (inboard/outboard) designs situate the engine forward of the transom, with the drive unit outside the hull; and jet motors propel the boat by drawing water into a pump and ejecting it out the stern. According to the 2013 Special Report on Fishing and Boating, 53.1 percent of boats are powered by outboard motors, while 16 percent feature inboard motors, 15 percent have sterndrive motors, 3.3 percent have jet motors and 12.7 percent are not motorized.

AMSOIL Products for Marine Applications
A successful day fishing or boating hinges on the reliability of marine engines. Deposits and wear from high-rpm operation and all-day trolling can limit performance and even shorten engine life, especially in newer engines that run hotter and produce more power. AMSOIL synthetic marine lubricants, including Formula 4-Stroke® Marine Synthetic Motor Oil (WCT, WCF) and HP Marine™ Synthetic 2-Stroke Oil (HPM), are formulated to control harmful deposits and wear in outboard, inboard and sterndrive motors.

AMSOIL products are ideal for boaters because they effectively reduce time and money spent on maintenance and increase fuel economy. In fact, research reveals maintenance and fuel costs are foremost on the minds of boaters. The top three reasons ex-boaters cited for giving up their boats are cost of maintenance/ storage (41.1%), cost of fuel (21.5%) and time constraints (20.6%).

AMSOIL Products for Tow Vehicles and Trailers
Don’t forget about tow vehicles and trailers. AMSOIL offers not only premium synthetic marine oils for boat motors, but AMSOIL synthetic motor oilsdiesel oils and drivetrain fluids for tow vehicles and Synthetic Water-Resistant Grease (GWR) for trailers. AMSOIL synthetic motor oils and diesel oils help reduce maintenance and downtime and extend drain intervals, allowing increased time on the water.

AMSOIL Synthetic Marine Gear Lube
To prepare your boat’s motor to hit the water, make sure you have AMSOIL Synthetic Marine Gear Lube to protect against shock-loading and water contamination.

AMSOIL Synthetic Marine Gear Lube is formulated to address the specific concerns of marine applications. Fortified with extreme pressure (EP) additives, it provides superior protection for fast-accelerating, high-torque/horsepower engines. It is water resistant and promotes long seal life to help prevent water contamination.

Pete Mania from The Next Bite explains the importance of protecting your engine’s lower unit gear case and how AMSOIL Synthetic Marine Gear Lube can keep you out on the water all season.

AMSOIL Synthetic Marine Gear Lube is recommended for fresh and salt water applications requiring either 75W-90 or 80W-90 viscosity grade and meeting either API GL-4 or GL-5 performance standards. For all AMSOIL products for your outboard, consult the AMSOIL Marine Outboard Product Guide.
Protection for all your engines 
Fishing Boats
The anticipation and adrenaline of catching your limit is tough to beat. AMSOIL synthetic lubricants deliver the engine response and precision performance you need to stay on the fish all day.
Fishing Boats
Pleasure Boats
Protect your boat for uninterrupted fun on the water with superior protection against engine wear, rust and corrosion.
Fishing Boats
Diesel Boats
Protect your boat for uninterrupted fun on the water with superior protection against engine wear, rust and corrosion.
Diesel Boats
Personal Watercraft
Fuel high-speed fun on the open water by keeping your personal watercraft running clean and smooth with AMSOIL synthetic lubricants.
Diesel Boats
Pontoon Boats
Cruising on the water with family and friends is always enjoyable, especially with the peace of mind that only AMSOIL synthetic lubricants can deliver.
Diesel Boats
Low Toxicity

Most anglers, boaters and personal watercraft owners are as interested in protecting our waterways for future generations as they are in enjoying them now. HP Marine® Synthetic 2-Stroke Oil offers a unique combination of high performance and low aquatic toxicity. It has passed stringent tests developed by the Organisation for Economic Cooperation and Development to measure the effects of oil-contaminated water on common marine organisms.

Testing of HP Marine revealed a 100 percent survival rate of Daphnia Magna neonates (water fleas) and fathead minnows exposed to increasing concentrations of HP Marine mixed in water. In concentrations of less than 25 percent, algae (Pseudokirchneriella subcapitata) showed no reduction in growth or reproduction rates. These test results confirm that HP Marine is a smart and environmentally safe option for boaters and personal watercraft owners.


 (800) 653-0323

 San Diego, CA, 92123
United States
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