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Thread: 2021 F900R octane question

  1. #1

    2021 F900R octane question

    I recently purchased a 2021 F900R and would like to know what is the correct fuel octane to run in this bike. The manual says 87 but the BMW web site about the bike says premium fuel. My dealer also says premium. 87, 89 or 93? Which is the correct answer?
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    Quote Originally Posted by gandrix11 View Post
    I recently purchased a 2021 F900R and would like to know what is the correct fuel octane to run in this bike. The manual says 87 but the BMW web site about the bike says premium fuel. My dealer also says premium. 87, 89 or 93? Which is the correct answer?
    The manual has its purpose.
    ‘22 R1250RT
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    Is there a factory sticker by the gas cap with the octane rating? My F800ST manual states Premium, but the sticker on the bike 89. So that is what it gets. 89

  4. #4
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Quote Originally Posted by gandrix11 View Post
    I recently purchased a 2021 F900R and would like to know what is the correct fuel octane to run in this bike. The manual says 87 but the BMW web site about the bike says premium fuel. My dealer also says premium. 87, 89 or 93? Which is the correct answer?
    Welcome to the forum!
    Great looking bike. Hope you have good luck with it.
    On my F800GS, premium was recommended but there was an option to “re-map” the bike to sort of “de-tune” to run regular.
    I think I would stay with premium. I like to have the dealer do the first service that way the computer can receive the latest updates.
    Good luck.
    Gary
    "You can do good or you can do well. Sooner or later they make you choose." MI5
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    2009 F800GS 1994 TW200

  5. #5
    #129265 rinkydink's Avatar
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    I have to say do what your manual says but my XR ran fine on mid grade 89 octane.
    Linc G.

    Hard work pays off in the future, laziness pays off now.

  6. #6
    I was worried more about ethanol in my gas as I ride infrequently and the bike sits alot. I only use ethanol free gas which is only available in 89 octane where I live. Never had any issues.

  7. #7
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Quote Originally Posted by Alyron View Post
    I was worried more about ethanol in my gas as I ride infrequently and the bike sits alot. I only use ethanol free gas which is only available in 89 octane where I live. Never had any issues.
    Welcome to the forum!
    I think your plan is perfect on two fronts.
    Gary
    "You can do good or you can do well. Sooner or later they make you choose." MI5
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    2009 F800GS 1994 TW200

  8. #8
    Debbie's Servant Lee's Avatar
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    BMW considers 89 AKI premium.
    To see if they recommend 89 AKI or 91 AKI you have to look in the Ownrs Manual.
    Last edited by Lee; 04-19-2022 at 02:24 AM.
    Lee
    2022 R1250RS
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    Past BMW Bikes: 2016 R1200RS, 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  9. #9
    Left Coast Rider
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    89 AKI is roughly equivalent to 93 RON which, I believe, is the standard in North America. So, run premium fuel in that bike - it'll be happier.

  10. #10
    This is from the manual for my bike
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    Registered User bmwgsrider's Avatar
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    Quote Originally Posted by gandrix11 View Post
    This is from the manual for my bike
    I always run Premium. It is better for the injectors.
    Bye bye 2006 F650 GS for a 2011 F650 GS.

  12. #12
    #13338 PGlaves's Avatar
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    Quote Originally Posted by bmwgsrider View Post
    I always run Premium. It is better for the injectors.
    Why?
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  13. #13
    MOA #24991 Pauls1150's Avatar
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    Aren't the "premium" blends supposed to have more cleaning additives? In the case of Chevron, they claim that it has more Techron, and Shell "V-Power" has the "Nitro +" (recommended by BMW M).

  14. #14
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Mobil, now Exxon Mobile, has always mentioned a “better” additive package.

    https://www.exxonmobilchemical.com/e...ants-and-fuels

    I think it is all (supposed to be) added at the terminal.

    OM
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  15. #15
    #13338 PGlaves's Avatar
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    Quote Originally Posted by Pauls1150 View Post
    Aren't the "premium" blends supposed to have more cleaning additives? In the case of Chevron, they claim that it has more Techron, and Shell "V-Power" has the "Nitro +" (recommended by BMW M).
    Maybe, but when is enough enough? At 40 or more cents a gallon price difference I could afford a bottle of good injector cleaner after every couple of tanks of gas. But a dose of cleaner in a tank of fuel about every 12,000 miles major service is normally sufficient. And for overkill I could do it every 6K miles instead. So I run the 87 AKI specified for my bikes.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

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