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Octane Q

Discussion in 'E90/E91/E92/E93 (2006-2011)' started by Jay Polak, Jun 5, 2009.

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    Jay Polak

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    I just bought a new BMW 335i the salesman and the service advisor both said the same thing ... since you can't get 91 octane in Georgia as long as you use a top tier gasoline it does not matter weather you use 89 or 93 octane. Sooooo what is the real deal. Does it matter? Thanks
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    Get the 93. I think using 87 would cause some knocking to occur.
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    • Technical Service Advisor


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    They mean at least 91 octane. The car has knock sensors to reduce the possibility of detonation, but it is not adviseable to run a twin turbo car on cheap gas. Pony up the dough, and always buy the premium (top tier if you can find it.)
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    Use the highest octane top tier gas you can find. I can not believe that my BMW center delivered my car full of gas from a local lower price chain, and not top tier. But I guess I'm not surprised since the local Porsche/Audi/Saab/Volvo dealer gets their gas at the same chain. :eek:

    M3Driver guest

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    Shell or Chevron 93 works for me.
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    Top tier all the way! Highest 90's octane you can get. I only have Shell in my area.... Has any one notice that the top tier site has been down for a few weeks now!?!

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