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  1. #1

    Oil used in 1996 Polaris SL 900??

    How can I tell by looking at it what oil was used in my ski?
    If I just went to synthetic would that be best?

    What was originally recommended for my ski?


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Other than the dye color all 2-stroke oils look similar.

    Except for some specialty oils all the normally available 2-stroke oils are mixable.

    Polaris brand VES synthetic is quite good, as the non-synthetic Polaris oil is well regarded.

    Lots of other oil brands available, along with lots of opinions.

  3. #3
    Can I mix synthetic and regular 2 cycle oil? Im asking because I dont know what is in there now. I put a 96 SL 900 engine in my 2000 Polaris SLX. I used Synthetic before I switched engines so my tank is filled with West Marine Premium Synthetic 2 cycle oil. If the SL 900 engine used regular instead of synthetic will it hurt anything if I switch to synthetic now?

  4. #4
    This is the oil I was using for my 2000 Polaris SLX 1200
    http://www.westmarine.com/webapp/wcs...classNum=50397

    Click image for larger version. 

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  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    I do not see a problem with mixing your synthetic and non-synthetic oils.

    All Polaris engines will run just fine on the synthetic oils, regular oils, or a blend of the two. There is no need to switch to 'regular' oil just because you now have an 'older' engine in there.

    Mechanically all the red domestic engines use the same internal bearings and such. The 900 and 1200 are essentially the same engine, just different in cylinder displacement and power output.

    You should verify that your SLX jet pump impeller is the correct 'pitch' for your 900 engine. As long as that 900 can rev well into the proper RPM range at full throttle it should be fine.

    What you don't want is the impeller to have such a steep pitch that the engine cannot spin it up fully. You want to be well over 6000RPM at full throttle.

    I just did the opposite engine swap, installing a red 1200 engine into an SL 900 hull. That 1200 engine currently turns 6600RPM with the correct impeller.

  6. #6
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    The 900 should turn 6300-6400.

  7. #7
    It does. Ran like new out there today

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