AUTHORIZED DEALER
ACE HI OIL
Norman Rinehart
Fort Worth, TX & Southlake
CALL (888) 459-9958
         (817)  431-6664
SAE 10w-30 & SAE 10w-40

10w-30 & 10w40 Synthetic Marine Engine Oil


AMSOIL Synthetic Marine Engine Oil is a premium synthetic formulation designed to withstand the heat and stress of high-rpm operation and deliver excellent wear protection. It protects against rust and corrosion during periods of inactivity and long-term storage to keep your engine protected, even when it’s not running. Synthetic Marine Engine Oil is perfect for hardcore anglers and boating enthusiasts who demand the best protection for their marine engines.

Fights Engine Wear

AMSOIL Synthetic Marine Engine Oil's naturally strong base oils resist viscosity loss due to mechanical shear. The oil develops a tough lubricating film that protects engine parts, even in high-heat, high-rpm conditions that breakdown other oils. Synthetic Marine Engine Oil contains robust anti-wear additives that further reduce wear in metal-to-metal contact regions, guarding against compression loss for maximum power and extending the lives of marine engines.

Excellent Anti-Rust Performance

Good rust protection is not natural to motor oil; it comes only by design. AMSOIL Synthetic Marine Engine Oil is fortified with potent inhibitors that guard against damaging rust and corrosion. It protects engines during use and during inactivity or long-term storage.
  • Excellent high-stress, high-rpm endurance
  • Increased rust and corrosion protection
  • NMMA FC-W Catalyst Compatible

NMMA Certified

Synthetic Marine Engine Oil is certified by the National Marine Manufacturers Associa-tion (NMMA) for use in four-stroke outboard motors. This high-quality oil demonstrates outstanding performance and meets the requirements of the NMMA FC-W Catalyst Compatible specification, which is backward-compatible with the FC-W specification.

10W-30 ‐FC-W (CAT)® Registration Number: FC-00833T
10W-40 ‐FC-W (CAT)® Registration Number: FC-00850T

10W-30 Synthetic Marine Engine Oil

10W-40 Synthetic Marine Engine Oil

  • 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*.

    NMMA FC-W Catalyst Compatible – API SM
    • 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.
  • AMSOIL Synthetic Marine Engine Oil is compatible with other synthetic and conventional motor oils. Adding other oils, however, will shorten the life expectancy of AMSOIL motor oils and reduce their performance benfits. AMSOIL does not support extended drain intervals where oils have been mixed.
  • Synthetic Marine Engine Oil
                                                                                                                     10W-30 (WCT)   10W-40 (WCF)
    Kinematic Viscosity @ 100ºC, cSt (ASTM D445) ............................................ 11.8                14.1 
    Kinematic Viscosity @ 40ºC, cSt (ASTM D445) .............................................. 75.6                93.3 
    Viscosity Index (ASTM D2270) ........................................................................ 151                 155 
    Pour Point ºC (ºF) (ASTM D97) ....................................................................... -39 (-38)         -38 (-36) 
    Flash Point ºC (ºF) (ASTM D92) ...................................................................... 230 (446)        240 (464) 
    High-Temperature/High-Shear Viscosity (ASTM D5481) ................................. 3.5                  4.2 
    Four-Ball Wear Test !34-$ KGF ƒ#RPM HR 3CAR MM .................... 0.41                0.40 
    NOACK Volatility, % weight loss (g/100g) (ASTM D5800) ................................ 7.8                 7.5 
    Total Base Number ........................................................................................... 7.9                  7.9