AMSOIL www.SuperOilCentral.com Logo
         Nationwide Home Delivery Available!

1-877-331-4642
Martin & Lori Gilmore
AMSOIL Premiere Direct Jobber #392704

Serving Western & Upstate New York Since 1995
Top Ten AMSOIL Dealer in Retail and Commercial Sales in the Nation

Rochester, NY  •  Buffalo, NY  •  Jamestown, NY
Adirondack Region
More to Come!

Authorized AMSOIL Dealer Website

HomeAMSOIL ProductsHow to Buy AMSOILAMSOIL Online StoreAMSOIL Corporate WebsiteAMSOIL HistoryAMSOIL WarrantyLocal AMSOIL Racing

AMSOIL Building
AMSOIL, Inc. Building

AMSOIL Online Store


Request a FREE AMSOIL Product Catalog!

Free AMSOIL Catalog!

Download AMSOIL Catalog PDF Version (2.13 MB):

AMSOIL Catalog PDF


Look up AMSOIL Lube & Filter Information:

AMSOIL Application Guide


Request Information
on Becoming an AMSOIL:

Commercial Account

Retail Account

Independent Dealer

Preferred Customer


National Trade Publication
Praises AMSOIL!

LNG Publishing Magazine

LNG Publishing Company, Inc.

In the March 2003 issue of Lubes 'n' Greases, Automotive Editor David McFall wrote an in-depth article on the subject of extended oil drain intervals and touted AMSOIL as a safe, cost-effective and environmentally preferred choice. He praised AMSOIL for their commitment to excellence and labeled AMSOIL "unshackled" for never conforming to industry norms and standards.

Read More . . .


Compare AMSOIL to Mobil 1, Pennzoil, Quaker State, Castrol and more!

AMSOIL 10W-30 Motor Oil and ten competing oils were subjected to a series of tests. AMSOIL  outperformed all the competitors in nearly every test! See the impressive test results!

Read More . . .


AMSOIL Formula 4-Stroke®
Synthetic 10W-30 and 10W-40 Marine Oils

AMSOIL 4-Stroke 10W-30 Synthetic Marine Oil

AMSOIL 4-Stroke 10W-40 Synthetic Marine Oil

Certified by the National Marine Manufacturers Association (NMMA)

AMSOIL Formula 4-Stroke® Synthetic 10W-30 and 10W-40 Marine Oils are a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. They withstand the intense mechanical action of continuous, high RPM operation to deliver superior viscosity protection. AMSOIL Formula 4-Stroke® Marine Oils are specially fortified with a heavy treatment of advanced additives that protects motors against wear, rust and deposits. They excel in both high-horsepower applications and all-day trolling conditions.

 

National Marine Manufacturers Association Logo
NMMA Registration #FB-30011B 10W-30
NMMA Registration #FB-30010B 10W-40

4-Stroke Outboard Motor Warranty Certified

AMSOIL Formula 4-Stroke® Synthetic Marine Oils are certified by the National Marine Manufacturers Association (NMMA) for use in four-stroke outboard motors. These high-quality oils demonstrate outstanding performance, exceeding the NMMA “FC-W” (Four Cycle-Water) specification requirements. AMSOIL Formula 4-Stroke® Marine Oils fulfill the warranty requirements of four-stroke outboard motor manufacturers.

Locate an AMSOIL Retailer in New York State
Locate an AMSOIL
Retailer in
New York State

Superior Protection Against Engine Wear

Marine engines operate under high loads and RPMs for extended periods of time, causing traditional automotive oils to break down and lose viscosity. While automobile engines normally operate at around 2,500 rpm, outboard motors can run twice as fast, requiring greater levels of wear protection and better bearing durability than automobiles. To ensure good protection, the NMMA set minimum shear stability requirements for FC-W. AMSOIL Formula 4-Stroke® Synthetic Marine Oils greatly exceed the FC-W shear stability requirements, outperforming competitive oils to deliver a superior lubricating film.
      Four-stroke outboards feature vertically mounted crankshafts, limiting oil retention at shutdown and increasing the likelihood of dry starts and accelerated wear. AMSOIL Formula 4-Stroke® Marine Oils contain a high concentration of premium-quality anti-wear additives that provide an extra level of wear control upon start-up (see Four-Ball Wear Test graph below).

 

AMSOIL Formula 4-Stroke®
Synthetic 10W-30 Marine Oil
Wear Comparison

AMSOIL Formula 4-Stroke®
Synthetic 10W-40 Marine Oil
Wear Comparison

AMSOIL 10W-30 Marine Oil Four Ball Wear Test AMSOIL 10W-40 Marine Oil Four Ball Wear Test
In the Four-Ball Wear Test, lubricants with low scores offer the best protection.
AMSOIL Marine Oils had the lowest scores of all the motor oils tested.

 

Exceeds Both the API and NMMA FC-W Requirements for Shear Stability

In addition to be subjected to higher RPMs, prolonged idling and low operating temperatures contribute to fuel dilution, further thinning the oil. To ensure adequate protection for their engines, marine engine manufacturers set minimum high-temperature/high-shear (HTHS) viscosity limits. AMSOIL Formula 4-Stroke® Synthetic Marine Oils are shear stable and formulated with sophisticated oil additive chemistry, exceeding the HTHS requirements of both the API and NMMA FC-W (see High-Temp/High-Shear Test graph below).

 

AMSOIL Formula 4-Stroke®
Synthetic 10W-30 Marine Oil
High Temperature/High Shear

AMSOIL Formula 4-Stroke®
Synthetic 10W-40 Marine Oil
High Temperature/High Shear

AMSOIL 10W-30 Marine Oil HTHS Viscosity AMSOIL 10W-40 Marine Oil HTHS Viscosity
In the High Temperature/High Shear Test, lubricants with high scores offer the best protection.
AMSOIL Marine Oils exceed the HTHS requirements of both the API and NMMA FC-W.

 

Excellent Anti-Rust Performance

Marine engines are prone to rust, leading to uncontrolled wear and premature engine failure. However, good rust protection is not natural to engine oil. It comes only by design. AMSOIL Formula 4-Stroke® Synthetic Marine Oils are fortified with a special anti-rust agent, even more than required to pass stringent NMMA FC-W anti-rust testing.

Applications

AMSOIL Formula 4-Stroke® Synthetic Marine Oils are recommended for gasoline fueled four-stroke outboard, inboard, inboard/outboard (I/O) and personal watercraft motors.

  • AMSOIL Formula 4-Stroke® Synthetic 10W-30 Marine Oil is recommended for the following applications (see chart below) whenever an SAE 5W-30, 10W-30 or straight SAE 30 oil is called for.

  • AMSOIL Formula 4-Stroke® Synthetic 10W-40 Marine Oil is recommended for the following applications (see chart below) whenever an SAE 10W-40, 15W-40, 25W-40 or straight SAE 40 oil is called for.
     

Recommended Applications
Four-Stroke Outboard Motors Inboard and I/O Personal Watercraft
Bombardier/BRP®
Honda®
Johnson®/Evinrude®
Mercury®
Nissan®
Suzuki®
Tohatsu®
Yamaha®
Chevrolet®
Chrysler® Marine
Crusader®
Ford®
Marine Power®
Mercruiser®
OMC®
Volvo Penta®
Bombardier/BRP® (Sea-Doo®)
Honda®
Polaris®
Yamaha®
Note: AMSOIL Formula 4-Stroke® Synthetic 10W-30 Marine Oil is recommended for use in place of 5W-30 as specified by Honda®.
Note:
AMSOIL Formula 4-Stroke® Synthetic 10W-40 Marine Oil is recommended for use in place of 25W-40 as specified by Mercury®.


Service Life

Four-stroke outboard motors and personal watercraft applications: 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 one year, whichever comes first.

Performance Specifications

AMSOIL Formula 4-Stroke® Synthetic Marine Oils meet or exceed the following performance test requirements and may be used in motors requiring oils meeting these specifications:
  • API SL
  • NMMA FC-W

Attention Power Sports Enthusiasts! The AMSOIL Power Sports & Motorcycle Application Guide contains lube and filter specifications for motorcycles, snowmobiles, ATV's, personal watercraft and outboards.

 
AMSOIL Formula 4-Stroke® Synthetic 10W-30 Marine Oil
Product Code

Pkg./Size

WCTQT-EA Quart Bottle
WCTQT-CA Quart Bottles (case of 12)
WCT55-EA 55-Gallon Drum

Competitive price structures are available for retail and commercial accounts.
Please call 1-877-331-4642 or e-mail us today for more information.

Click here for prices
Buy Now
See Prices

Estimate
Shipping

arrw01_37a.gif

 
 
AMSOIL Formula 4-Stroke® Synthetic 10W-40 Marine Oil
Product Code

Pkg./Size

WCFQT-EA Quart Bottle
WCFQT-CA Quart Bottles (case of 12)
WCF55-EA 55-Gallon Drum

Competitive price structures are available for retail and commercial accounts.
Please call 1-877-331-4642 or e-mail us today for more information.

Click here for prices
Buy Now
See Prices

Estimate
Shipping

arrw01_37a.gif

 
Multiply Weight x Cost per Pound (if applicable)
All Prices Are in U.S. Dollars.
For Canadian prices see
AMSOIL Online Store
arrw01_17a.gif Find Cost per Pound on Freight Schedule:
Shipping Costs,
Ordering Information and Return Policy
arrw01_17a.gif Look Up Weight by Product Code:
Fluid Products and Greases
Filtration Products
 

Check It Out!Check Out the AMSOIL Online Product Application Guide

Want to know which engine oil, transmission oil and gear lube is appropriate for your vehicle and the quantities required? Need to find the correct product codes for your vehicle's filtration requirements? Or, do you have a manufacturer part number of the filter you are currently using and would like to cross reference it? The AMSOIL Online Product Application Guide is the place with the answers!

Top of Page   Home


AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your engine.

Technical Properties  |  FAQs  |   Contact Us
Visit altrumonline.com. ALTRUM, a division of AMSOIL, features ALTRUM Nutritional Supplements,
AGGRAND Natural Fertilizer Products, AquaBrite Water Filters and Pure Power Laundry Detergent.

Thank you for visiting SuperOilCentral.com
© 2005 - 2008 Marlo Enterprises. All rights reserved. Website last updated July 23, 2008.