INDEPENDENT DEALER

   Jay, VT | (802) 327-4042

Boating Enthusiast are preparing

for a great spring on the water with AMSOIL.

Protect your investment with AMSOIL's line of synthetic boat marine oil.

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 oils, diesel 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 Products


On 2016 AMSOIL INC. introduced a new AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil to round out the family of AMSOIL marine products. 25W-40 Synthetic-Blend Marine Engine Oil is specifically designed for Mercury* motors that specify a synthetic-blend oil.

The company simultaneously gave its full marine line fresh packaging. All AMSOIL marine lubricants now boast similarly designed labels that group them into a defined product family, helping marine customers quickly determine which AMSOIL products are right for them. Easing the buying decision is especially important in retail settings where a knowledgeable counter person may not be available and people often make snap decisions. Their formulations and pricing remain unchanged.

Because most anglers work full-time and never seem to have enough time for fishing, they value lubricants that protect their motors from wear and help keep them on the water.

Marine motors are characterized by high-rpm operation that can shear the molecular structure of oil and reduce its ability to protect against wear. “On average, a marine motor propelling a boat 30 mph operates at 5,000 rpm, while an automotive engine at 60 mph operates around 2,000 rpm. The added heat and stress invite wear and deposits,” said Len Groom, Technical Product Manager – Powersports. “Heavy deposits can cause piston rings to stick, particularly in two-stroke motors. Stuck rings lead to compression loss, which reduces power. Stuck rings can also lead to catastrophic piston scuffing.”
10W-30 Synthetic Marine Engine Oil
4 Stroke
For use in 4-stroke gasoline fueled engines in marine applications. Offers unsurpassed wear protection, viscosity stability, low volatility and excellent rust protection. NMMA FC-W approved and "warranty certified". For use in 4-stroke outboard and marine inboard engines. Also excellent for personal watercraft.
10W-40 Synthetic Marine Engine Oil
4 Stroke
For use in 4-stroke gasoline fueled engines in marine applications. Offers unsurpassed wear protection, viscosity stability, low volatility and excellent rust protection. NMMA FC-W approved and "warranty certified". For use in 4-stroke outboard and marine inboard engines. Also excellent for personal watercraft.
25W-40 Synthetic Blend Marine Engine Oil
4 Stroke
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.
HP Marine Synthetic

2 Stroke
  • Excellent for Evinrude® E-TEC™ factory-lean setting (replaces Evinrude XD100™ 2-Cycle Oil)
  • Helps prevent deposits
  • Protects against wear
  • Low smoke
  • Protects against rust
  • Low aquatic toxicity
  • Superior performance as an injection oil or at 50:1 pre-mix
Outboard 100:1 Pre-Mix 
Synthetic 2-Stroke Oil
2 Stroke
  • Excellent lubricity and cleanliness properties
  • Controls friction and helps prevent wear, plug fouling, ring sticking and exhaust port blocking
  • Improves throttle response
  • Lowers or eliminates smoke
  • Delivers outstanding protection and performance at lean mix ratios
  • Anti-rust formulation counteracts the damp environments often encountered in outboard applications
Synthetic Marine Gear Lube 75W-90

  • Excellent gear and bearing protection, even when contaminated with 10% water
  • Reduced friction and wear
  • Protection against rust and corrosion
  • Long seal life
  • Superior foam prevention
You can learn which of these products work better on your engine: 

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.


Pleasure Boats
Protect your boat for uninterrupted fun on the water with superior protection against engine wear, rust and corrosion.


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
The open water is where you feel free, and where the excellent engine performance and premium protection provided by AMSOIL synthetic lubricants are essential.


Personal Watercraft
Fuel high-speed fun on the open water by keeping your personal watercraft running clean and smooth with AMSOIL synthetic lubricants.