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AMSOIL 10W-40 100% Synthetic Marine Engine Oil

Product code : WCFQTC-EA

  • Excellent high-stress, high-rpm endurance
  • Increased rust and corrosion protection
  • NMMA FC-W Catalyst Compatible
  • Perfect for hardcore anglers and boaters who demand the best protection for their marine engines

AMSOIL 10W-40 100% Synthetic Marine Engine Oil



Specially engineered for marine applications. Durable formulation protects in severe conditions, from all-day trolling to high-rpm operation. Heavily fortified with advanced additives designed to prevent deposits, rust and corrosion. Use in gasoline-fueled four-stroke inboards, outboards, inboard/outboards and personal watercraft, including those made by Honda,* Mercury,* Yamaha,* Johnson/Evinrude,* Bombardier/BRP,* Suzuki,* Nissan,* Tohatsu,* OMC,* Volvo-Penta,* Mercruiser,* Chevrolet* and Ford.*

See the Product Data Bulletin for full details.


FIGHTS ENGINE WEAR

  • Naturally strong base oils resist viscosity loss due to mechanical shear.
  • Develops a tough lubricating film that protects engine parts, even in high-heat, high-rpm conditions that break down other oils.
  • Contains robust anti-wear additives that further reduce wear in metal-to-metal contact regions, guarding against compression loss for maximum power and engine life.

EXCELLENT ANTI-RUST PERFORMANCE

  • Fortified with potent inhibitors that guard against damaging rust and corrosion.
  • Protects engines during use and during inactivity or long-term storage.

NMMA CERTIFIED

  • Certified by the National Marine Manufacturers Association (NMMA) for use in four-stroke outboard motors.
  • Demonstrates outstanding performance and meets the requirements of the NMMA FC-W Catalyst Compatible specification, which is backward-compatible with the FC-W specification.

See the Product Data Bulletin for full details.

*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

AMSOIL 10W-40 100% Synthetic Marine Engine Oil

Data Bulletin

Warranty

SDS



AMSOIL 10W-40 100% Synthetic Marine Engine Oil

  • 5 star rating
    I trust AMSOIL for everything!
    By  Clyde,  a  Verified Buyer  from  MO  on  May 02, 2024
    Good stuff! Got it in my cars, trucks (diesel & gas), tractors, mowers, saws, skid steer, backhoe, boat, bikes, & bedrooms (squeaky hinges/springs ya know). AMSOIL hasn't let me down in 25 years. Proud, proud, proud!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Suzuki 150hp & Suzuki 9.9hp
    By  Too Tall,  a  Verified Buyer  from  Port Angeles, WA.  on  April 24, 2024
    Been using Amsoil Marine Oil since motors were new, 2009. Have had zero engine problems. Also use lower unit oil, filters and grease. Quality products
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Excellent !
    By  Richard,  a  Verified Buyer  from  CO  on  April 22, 2024
    Two Thumbs Way High !
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Trusted Protection
    By  Mike K,  a  Verified Buyer  from  NJ  on  April 03, 2024
    I have been running Amsoil marine products in my Yamaha SHO outboards since 2014. The motors run great even under the heavy strain of "run and gun" bass fishing. Shifting with the Amsoil lower gear oil is fantastic, no clunking going between forward/reverse and the contamination during yearly changes is minimal.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Outboard
    By  JACK,  a  Verified Buyer  from  Ontario Canada  on  March 30, 2024
    Have used Amsoil in my Honda 225 s since new in 2006..they now have 1000 hours on them..they have never used any oil ..oil after each season looks like it has never been used
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    25 HP Yamaha
    By  PAUL,  a  Verified Buyer  from  Lexington, KY  on  March 24, 2024
    Can’t get better protection.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best on the he market
    By  STEPHEN,  a  Verified Buyer  on  February 29, 2024
    This is the best marine oil out there. Tested it in my boat.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 1 star rating
    marine oil
    By  Larry,  a  Verified Buyer  from  MT  on  December 28, 2023
    I will be changing the oil in my boat motor sometime this spring. this will be the second season on the motor. I was advised by the dealership to use Mercury marine oil on the first oil change for brake-in purposes. This will be the first oil change for Amsoil.
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  • 5 star rating
    MARINE ENGINE OIL
    By  EDWARD,  a  Verified Buyer  from  Great Lakes  on  November 22, 2023
    We have been using this oil in our 1991 4.3L engine for over a decade. The engine now has a few thousand hours on it. We use nothing but Amsoil in all our rigs (trucks, sleds, boat motors)
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    idle
    By  Tony,  a  Verified Buyer  from  port colborne  on  November 10, 2023
    75 HP Yamaha.This oil is great as the years have shown me; as this engine idles 3-6 hours without carbon buildup and when i accelerate to top speed (weather permitting) there is no smoke or hesitation When I check the spark plugs they are in excellent condition .
    Bottom Line
    Yes, I would recommend this to a friend.
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