AMSOIL logo Independent Dealers
Chip & Jill Hayes

E-mail address: chip@cnjhayes.com

Phone: (252) 940-0056
8 a.m. to 10 p.m., Eastern time
www.syntheticsolutions.biz
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AMSOIL 4-Cycle Marine Engine Oils
Check the Wear Scar


Formula 4-Stroke® Marine Synthetic Motor Oils (WCT, WCF) are formulated specifically for use in four-stroke gasoline-fueled engines used in marine applications. They offer unsurpassed wear protection, viscosity stability, low volatility and excellent low temperature fluidity. AMSOIL Formula 4-Stroke® Marine Synthetic Motor Oils meet the “Warranty Certified” status of engine manufacturers. They are recommended for use in four-stroke outboard motors including Honda, Yamaha, Mercury, Suzuki, Johnson-Evinrude (BRP) and more. Also excellent for use in marine inboard/outboard engines, marine inboard power plants and personal watercraft. (WCT, WCF)
WCT
10W-30
Buy Now
WCF
10W-40 Buy Now

Superior Protection Against Engine Wear. With AMSOIL engine life is extended and major repairs are often reduced.


May 2005 Test Results

 

Marine engines operate under high loads and RPMs for extended periods of time, causing traditional automotive oils to break down and lose viscosity. To ensure good protection, the NMMA set minimum shear stability requirements for FC-W. AMSOIL Formula 4-Stroke® Marine Synthetic Motor Oil greatly exceeds the FC-W shear stability requirements, outperforming competitive oils to deliver a superior lubricating film. Formula 4-Stroke® Synthetic Oil also contains robust anti-wear additives that further reduce wear in metal-to-metal contact regions (see Four-Ball Wear Test graphs).

Four Ball Wear Test - The Four-Ball Wear Test evaluates the protection provided by engine oil under conditions of pressure and sliding motion. The size of the scar left as a result of the test determines the amount of wear protection the lubricant provides. The smaller the wear scar, the better the protection. Tests show that AMSOIL Formula 4-Stroke® Marine Synthetic Motor Oils has better antiwear performance than other oils tested. With AMSOIL Synthetic Motor Oil, engine life can be extended and major repairs are often reduced.