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  1. #1

    What 4-stroke oil do you use?

    Hi!

    I have done a few things to my 05 RXP 215, so the engine puts out about 260hp, just done a engine rebuild as one of the valves broke and ended up where it shouldnt have....
    The IC was leaking just a tiny bit, and I got water in the oil... didnt check the oil, and there you go...

    With the engine rebuild I got new Riva valves, and have decided that the oil aswell has to be changed for something better.
    But Im unsure of what type of oil I should change to, do I HAVE to get a MA-1 oil or maybe just a MA oil without friction modifyers.

    I have been reading abit around on bike engine and snowmobils and there are even people useing normal car engine oil witch are reporting no problems with the wetclutch slipping.

    I have been thinking of changing to Mobil 1 Racing 4T 10W-40 as im useing Mobile 1 on my car and it has preformed realy well.

    But Im dont know why, but im not that keen on haveing oils with slipp modifiers, it just feels wrooong...

    Im on the brink of pulling out my charger, buying different kinds of oil and start tourque checking the oils to see if the clutch is slipping befor it should.......

    Anyway, anyone able to share some expreiance?

    Best regards


  2. #2
    SingTH's Avatar
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    SEADOO IS 10W-40 or 5W-40 Synthetic Blend or Fully synthetic , I used AMCO Oil.

  3. #3
    tick.. tick.. RXPteamtimebomb's Avatar
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    Valvoline 10w-40 4-stroke motorcycle oil for wet clutches, good oil for supercharged 4-tecs.. I have been using it for a while now.. Only 4.99 to 5.99 at most auto stores

  4. #4
    GRF + DashPac:) seadoo02xp's Avatar
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    Im sure ill get lit up for this but I run Mobil 1 full synthetic 0-40, clutches hold just fine, plus I get it for free

  5. #5
    Moderator Snoman's Avatar
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    Quote Originally Posted by seadoo02xp View Post
    Im sure ill get lit up for this but I run Mobil 1 full synthetic 0-40, clutches hold just fine, plus I get it for free

    I used to run that in both my skis..BUT at 80.00 to change both skis out i switched to Valvoline 10w-40 4-stroke motorcycle oil for wet clutches...

  6. #6
    I use motorcycle oil. If its good enough for my bikes that all rev over 14k then its good enough for my ski.

  7. #7
    Quote Originally Posted by RXPteamtimebomb View Post
    Valvoline 10w-40 4-stroke motorcycle oil for wet clutches, good oil for supercharged 4-tecs.. I have been using it for a while now.. Only 4.99 to 5.99 at most auto stores
    +1

  8. #8
    GRF + DashPac:) seadoo02xp's Avatar
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    Quote Originally Posted by Snoman View Post
    I used to run that in both my skis..BUT at 80.00 to change both skis out i switched to Valvoline 10w-40 4-stroke motorcycle oil for wet clutches...
    I work at a Mercedes dealer so its free, otherwise I wouldn't run it, I put that shit in everything, someday ill be putting it on my pancakes!!

  9. #9
    richrxp's Avatar
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    5w50 wet clutch motorcylce oil, runs great on this oil.

  10. #10
    Eat-My-Roost's Avatar
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    Quote Originally Posted by RXPteamtimebomb View Post
    Valvoline 10w-40 4-stroke motorcycle oil for wet clutches, good oil for supercharged 4-tecs.. I have been using it for a while now.. Only 4.99 to 5.99 at most auto stores
    +2. Seadoo Brand is cheap. My cousin instantly noticed a difference once he switched to Valvoline in his ski.

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