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  1. #1

    "Best Oil" in SC Machines?

    I see that Sea Doo has a synthetic blend for the SC boats. What oil is best recommended for wet clutches? I have read much about Amsoil and their Marine synthetic oil, most of what i have read says this stuff is the best, which is probably a matter of opinion. Nontheless, when I bought my RXT in 06, full synthetic was a big no no and mineral oil was the oil of choice.

    Now that I have experienced major clutch slippage problems and am doing a rebuild after just 53 hours of operation, I am looking at oil as a means of extending clutch life.



    Thanks,

    2006 RXT
    RIVA Stage II
    RIVA Heavy-duty Supercharger Clutch Washers
    RIVA RXT Thermostat Kit
    RIVA Pro-Series Reduction Nozzle
    RIVA RXT Pro-Series O.P.A.S. Block-off Kit


  2. #2
    Banned User
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    I run normal Castrol mineral oil, 20/50 due to the heat in Florida.. No friction modifiers!!!

  3. #3
    Gus13letter's Avatar
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    There are quite a few threads on this. Here is one of the more recent http://greenhulk.net/forums/showthread.php?t=89475

  4. #4
    Ride Hard! aha's Avatar
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    amsoil

  5. #5
    800AMSOIL4U's Avatar
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    There are a bunch of people here that have been using the AMSOIL Synthetic Marine 10w-40 oil with great results. http://www.amsoil.com/redirect.cgi?z...storefront/wcf

  6. #6
    Golden Jet red fox's Avatar
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    What About This ...

    CASTROL MAGNATEC 10W-40

    http://www.castrol.com/castrol/secti...tentId=7018623

  7. #7
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    Quote Originally Posted by red fox View Post
    What About This ...

    CASTROL MAGNATEC 10W-40

    http://www.castrol.com/castrol/secti...tentId=7018623

    Similar to what I run, I heard acouple horror stories about Amsoil, so i've been gunshy to run it anymore

  8. #8
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    I've been running this for awhile in the 10W-40 grade... super clean looking oil... it's almost clear. I've considered running a synthetic, but I change my oil every 15 hrs. and don't feel it would be very beneficial for the cost difference.

    http://www.castrol.com/castrol/secti...tentId=7040925

  9. #9
    Bow chicka wow wow
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    Quote Originally Posted by Alex13 View Post
    Similar to what I run, I heard acouple horror stories about Amsoil, so i've been gunshy to run it anymore
    Been with the seadoo oil for almost 4 years on my 06 RXP, 250 hours stage1/2, no oil problems, no S/C problems, no loss compression. Not bad oil for $7/qt,

  10. #10
    SeaGoat's Avatar
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    As long as it's JASO MA certified, then it's (synthetic) fine for these sc engines. The castrol 4T is JASO MA certified, that other castrol magnatec is not. I wouldn't run it. I 'm using Mobile 4T synthetic motorcycle oil and it works fine but it is expensive.

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