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Thread: E10 Ethanol blend

  1. #1
    Join Date
    Jan 2005
    Location
    Melbourne Australia
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    326

    Default E10 Ethanol blend

    E10 is becoming available over here in oz, cheaper than 91 octane, but no information on the actual octane is published. ethanol can be used as an octane booster.
    2 questions..
    what is the octane rating of E10
    is it 'safe' to use on the e34. some rubber/plastic/metal components do not like ethanol -

    do we just fill up, reset the computer and let the chip work it out.
    1994 540i Auto

    live fast; die sideways
    13.3 @ 104mph (not in the 540)
    15.4 @ 150 Kph in the 540 (24/9/07)

  2. #2
    Join Date
    Sep 2008
    Location
    Gold Coast, Australia
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    178

    Default

    guys in the US said that they are using maybe ~1L/100kms more because e10 fuel has less energy from it.

    IMO i just buy regular unleaded since its only 2-3cents more per L. in the end e10 is cheaper because it has less energy.

  3. #3
    Join Date
    Oct 2004
    Location
    Honolulu
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    3,105

    Default

    Quote Originally Posted by stx133 View Post
    E10 is becoming available over here in oz, cheaper than 91 octane, but no information on the actual octane is published. ethanol can be used as an octane booster.
    2 questions..
    what is the octane rating of E10
    is it 'safe' to use on the e34. some rubber/plastic/metal components do not like ethanol -

    do we just fill up, reset the computer and let the chip work it out.
    It's safe, but it does shorten the life of the fuel delivery componants and reduce your gas mileage.


    Vee ave vays of dealing vid your kind...........

  4. #4
    Join Date
    Apr 2004
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    517

    Default

    SEe my post on rash of FP failures blamed by BMW on ethanol.

  5. #5
    Join Date
    Jul 2006
    Location
    El Paso TX
    Posts
    1,534

    Default

    yep, that crap is getting harder and harder to avoid.

    I lost 2mpg (out of 26) on a trip last summer when I had to fill up at a station with e10.

    cost me 40 miles distance and put me filling up at ANOTHER boonies station with e10 instead of driving a full 500 miles and hitting civilization and real gas.

  6. #6
    Join Date
    Apr 2006
    Location
    Chicago, Il. U.S.A.
    Posts
    4,243

    Default

    It's all that has been available here(Chicago) for better than a decade now. I don't even have a basis for comparison to quantify the economy difference.
    I've not seen an inordinate amount of fuel system failures but statistics might disagree.
    Your computer will figure it out and your economy will suffer a bit.
    "The gas pedal wouldn't go to the floor if it weren't meant to be there"

  7. #7
    Join Date
    Nov 2006
    Location
    Mid-Atlantic, USA
    Posts
    711

    Default

    Quote Originally Posted by Gene in NC View Post
    SEe my post on rash of FP failures blamed by BMW on ethanol.
    Data, please!

  8. #8
    Join Date
    Jan 2005
    Location
    Melbourne Australia
    Posts
    326

    Default

    price difference here, e10 - 98c -/- premium - $1.13 (per liter) - have noticed 5% change in fuel economy, still ahead.
    1994 540i Auto

    live fast; die sideways
    13.3 @ 104mph (not in the 540)
    15.4 @ 150 Kph in the 540 (24/9/07)

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