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Thread: Octane?

  1. #1

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    Octane?

    i have searched and not found any info on this. does it matter what octane gas you run in a SL900?


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by rcngmoto View Post
    i have searched and not found any info on this. does it matter what octane gas you run in a SL900?
    Have you looked in the 1992-1998 Service Manual?

    Polaris manual says;
    87 Octane, or 89 Octane if oxygenated

    I think most gasoline these days is oxygenated, so 89 octane would be the Polaris recommendation. I suspect a lot of folks run regular 87 octane anyway, just for the cost aspect.

    Note for non-US/Canada users; Octane ratings elsewhere in the world have higher numbers for the same grades of gasoline.

    An 89 Octane gasoline in the US would be equivalent to about 93-94 Octane in Europe and Australia.
    Last edited by K447; 06-21-2008 at 10:08 PM.

  3. #3

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    how about 93, that is what is in the tank now?

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by rcngmoto View Post
    how about 93, that is what is in the tank now?
    93 Octane is just fine.

    Octane numbers for engines are always the minimum level required/recommended from the fuel.

    You can always use a higher Octane rated fuel, with no problems.

    You will not see added power from the increased octane level (in these 2-stroke Polaris engines), but you will be even farther from the possibility of fuel detonation during mid-high throttle operation.

  5. #5

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    93 is good insurance for long days of non stop rideing , when these engines get real hot after going for about an hour at wot it demands a little better juice

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