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  1. #1
    Ultra250XRider's Avatar
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    What Brand & Type Oil Is Everyone Using?

    These questions have probably being asked a number of times. I tried to do a search but oil comes up everywhere.
    • What brand and type of oil is everyone using?
    • Is synthetic better?
    • Can you pickup a filter at your nearest auto store? If so what is it?
    • With the GIO problem, how often should you change the oil?
    • Do you replace the filter every time?
    Thanks for the help!

    Mike


  2. #2
    Quote Originally Posted by Ultra250XRider View Post
    These questions have probably being asked a number of times. I tried to do a search but oil comes up everywhere.
    • What brand and type of oil is everyone using?
    • Is synthetic better?
    • Can you pickup a filter at your nearest auto store? If so what is it?
    • With the GIO problem, how often should you change the oil?
    • Do you replace the filter every time?
    Thanks for the help!

    Mike
    1. I use 2 quarts 10-40 castrol syntec, and 2 quarts 15-40 non synthetic.

    2. I believe a synthetic blend is the best of both worlds.

    3. I use genuine kawi filters, they have an o-ring and are under greater pressure than a standard auto.

    4. GIO,,,, I would change it when there is an extra 1/2 quart or so.

    5. yes new filter each time.

  3. #3
    800AMSOIL4U's Avatar
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    I know quite a few people on here are using the AMSOIL 10w-40 Marine Oil.
    http://www.amsoil.com/redirect.cgi?z...storefront/wcf

    As far as the gas in the oil goes. You want to run the best oil you can, since it is washing down the cylinders. You need the best protection you can get. That would be a synthetic marine approved oil.

  4. #4
    Silence! I Keel You! earthshaker's Avatar
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    Quote Originally Posted by 800AMSOIL4U View Post
    I know quite a few people on here are using the AMSOIL 10w-40 Marine Oil.
    http://www.amsoil.com/redirect.cgi?z...storefront/wcf

    As far as the gas in the oil goes. You want to run the best oil you can, since it is washing down the cylinders. You need the best protection you can get. That would be a synthetic marine approved oil.
    Kevin,

    Does the 10-40 you have meet or exceed JASO MA or API SG? Can you post the spec?

  5. #5
    800AMSOIL4U's Avatar
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    Quote Originally Posted by earthshaker View Post
    Kevin,

    Does the 10-40 you have meet or exceed JASO MA or API SG? Can you post the spec?



    SAE 10W-40 Formula 4-Stroke® Marine Synthetic Motor Oil (WCF)





    Package sizes include:
    1-Quart Bottle
    1-Quart Bottles (case of 12)
    55-Gallon Drum
    PRODUCT DESCRIPTION


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


    4-Stroke Outboard Motor Warranty Certified


    Formula 4-Stroke® Marine Synthetic Motor Oil is certified by the National Marine Manufacturers Association (NMMA) for use in four-stroke outboard motors. This high quality oil demonstrates outstanding performance, exceeding the NMMA “FC-W” (Four Cycle-Water) specification requirements. Formula 4-Stroke® Marine Synthetic Motor Oil fulfills the warranty requirements of four-stroke outboard motor manufacturers.



    • NMMA Registration #FB-30010B 10W-40
    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. 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 graph).



    Click on graph




    to see larger image


    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. In addition, 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® Marine Synthetic Motor Oils are shear stable and formulated with sophisticated oil additive chemistry, exceeding the HTHS requirements of both the API and NMMA FC-W (see graph).

    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. Formula 4-Stroke® Marine Synthetic Motor Oil is 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® Marine Synthetic 10W-40 Motor Oil (WCF) is recommended for gasoline fueled four-stroke outboard, inboard, inboard/outboard (I/O) and personal watercraft motors. AMSOIL WCF motor oil is recommended for the following applications whenever an SAE 10W-40, 15W-40, 25W-40 or straight SAE 40 oil is called for:
    Four-stroke outboard motors: Honda®, Mercury®, Yamaha®, Johnson®/Evinrude®, Bombardier/BRP®, Suzuki®, Nissan®, Tohatsu®
    Inboard and I/O: Mercruiser®, Volvo Penta®, OMC®, Chrysler® Marine, Crusader®, Marine Power®, Chevrolet®, Ford®
    Personal Watercraft: Honda®, Yamaha®, Bombardier/BRP® (Sea-Doo®), Polaris®
    Note: AMSOIL Formula 4-Stroke® Marine Synthetic 10W-40 is recommended for use in place of 25W-40 as specified by Mercury®.
    NMMA FC-W • API SL

    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.
    Mixing AMSOIL
    AMSOIL Formula 4-Stroke® Marine Synthetic Motor Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils will, however, shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.
    Aftermarket oil additives are not recommended for use with AMSOIL motor oils.

    TYPICAL TECHNICAL PROPERTIES
    AMSOIL FORMULA 4-STROKE® MARINE SYNTHETIC MOTOR OIL (WCF)
    SAE 10W-40, API SL, NMMA FC-W
    Kinematic Viscosity @ 100°C, cSt (ASTM D-445)



    14.1
    Kinematic Viscosity @ 40°C, cSt (ASTM D-445)






    93.8
    Viscosity Index (ASTM D-2270)






    154
    CCS Viscosity, cP @ (°C) (ASTM D-5293)






    6871 (-25)
    Flash Point °C (°F) (ASTM D 92)






    234 (453)Fire Point °C (°F) (ASTM D 92)254 (489)Pour Point °C (°F) (ASTM D 97)-46 (-51)
    Noack Volatility, % weight loss (g/100g) (ASTM D-5800)






    6.40%
    Four Ball Wear Test (ASTM D 4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour, Scar in mm)



    0.40Total Base Number (ASTM D-2896) 10.5HTHS (cP)4.6Humidity Cabinet Rust (ASTM D-174 Pass












    Here is the JASO information. This oil exceeds the JASO Ma rating
    Attached Files Attached Files
    Last edited by 800AMSOIL4U; 06-12-2008 at 08:11 PM.

  6. #6
    Kiwi Racer's Avatar
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    Unhappy

    Was told synthetic is to good,,the rings wont have enough friction and burn oil ,,or our case let more gas in oil.

  7. #7
    personally, I like Amsoil full Syn - I think it is best for our application. I used to use it but was fored to downgrade oil due to changing the oil literally after every ride - keep in mind that the throttle was kept open for a full hur every time it was ridden.... major GIO issue. I downgraded to 5.00 a quart oil dur to all of the changes.

  8. #8
    Ultra250XRider's Avatar
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    Quote Originally Posted by 800AMSOIL4U View Post
    I know quite a few people on here are using the AMSOIL 10w-40 Marine Oil.
    http://www.amsoil.com/redirect.cgi?z...storefront/wcf

    As far as the gas in the oil goes. You want to run the best oil you can, since it is washing down the cylinders. You need the best protection you can get. That would be a synthetic marine approved oil.
    When using AMSOIL 10w-40 Marine Oil, would you still replace the filter every change? I guess my real question is, does the filter get dirty with changing the oil so often, or does the GIO damage the filter?

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