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Thread: Ethanol free fuels?

  1. #1
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    Ethanol free fuels?

    Just wanted to see what fuels in Aus do not have ethanol in them as I cant seem to find a definitive answer for current times.

    I am asking as have read that many "premium" fuels are now blended,

    Thought I would mention that this is for a small outboard as I dont have much of an issue with ethanol in a car.

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    As far as i know fuels with ethanol have to be advertised as such. It is illegal to sell fuel with ethanol added to it with out advertising it as such, eg;
    E 10 and E 85, as told to me by my old boss who runs a real servo...not a supermarket that sells fuel.

    Cheers Rod

    Ps if u use ethanol blended fuel in small engines it rots out the steel fuel tanks if left in the tank for long periods as it absorbs moisture. Moisture in steel tank equals rust. Same for cars

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    Quote Originally Posted by 67hardtop View Post
    As far as i know fuels with ethanol have to be advertised as such. It is illegal to sell fuel with ethanol added to it with out advertising it as such, eg;
    Cheers! Thats what I thought but have read that some premium ones were not listed as containing ethanol, though this is 8th hand info from the net.... so just thought I would check

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    Channel Seven last night did a really comprehensive test that showed that 91 octane unleaded is the most economical fuel to use as long as your car doesn't require 98.
    This was brain snappingly obvious to all but still had a reprise on Sunrise.

    Jeez what will they think of next.

    Regards Philip A

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    Quote Originally Posted by PhilipA View Post
    Channel Seven last night did a really comprehensive test that showed that 91 octane unleaded is the most economical fuel to use as long as your car doesn't require 98.
    This was brain snappingly obvious to all but still had a reprise on Sunrise.

    Jeez what will they think of next.

    Regards Philip A
    Ahh but did u notice, the test was done by buying only $1.00 of fuel not 1 litre. So its more economical, fuel price wise, not fuel volume wise.

    Cheers Rod

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  6. #6
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    Using ethanol in your old out board will probably cause failure to your fuel rubber hoses and the carby rubber gaskets.


  7. #7
    JDNSW's Avatar
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    I do not believe that it is a requirement to label ethanol content in fuels in NSW if the percentage is less than 10%. Part of the state's drive to increase the amount of ethanol used.

    John
    John

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    Quote Originally Posted by JDNSW View Post
    I do not believe that it is a requirement to label ethanol content in fuels in NSW if the percentage is less than 10%. Part of the state's drive to increase the amount of ethanol used.

    John
    Bugger, that's the kind of thing I was afraid of. Would prefer not to have to treat with stabiliser all the time for a small outboard to avoid separation issues ect from half tanks sitting for weeks at a time....but if that is the case I may need to treat as can't be sure if is blended or not.

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    Quote Originally Posted by JDNSW View Post
    I do not believe that it is a requirement to label ethanol content in fuels in NSW if the percentage is less than 10%. Part of the state's drive to increase the amount of ethanol used.

    John
    I think you will find, nationally, it's 5%. It used to be 1%.
    NSW must still comply with the national rules.

  10. #10
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    You could be right - I thought it was 10%, but I could be wrong. The theory is that at this small level it will not separate out, but I have my doubts - the major problem with ethanol is that it is hygroscopic, and I would be surprised if even 5% does not enable the fuel to absorb water, and hence become corrosive to fuel components.

    The only real solution is to not allow fuel to remain static in tanks or fuel systems for very long, especially if you are in a humid climate, including boating.

    John
    John

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    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

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