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Biofuel in the 1Z

Discussion in 'Diesel forum' started by Teabag, Jun 19, 2008.

  1. Teabag
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    Teabag New Member

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    [Jun 19, 2008]
    I hope I am not asking a question that has be answered before but I have looked and couldn't see anything honest!

    But I have a 1993 audi 80 tdi with the 1Z engine and I was wondering if it is possible to run it on biofuel or svo etc! especially as the cost of diesel has gone up so much the cost of a home kit looks more and more tempting but only if my car will cope with it!

    Does anyone have an experience of using biofuel with this engine or anywhere that I can look to find this information?

    Many thanks
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  3. bigdom71
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    bigdom71 New Member

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    [Jun 29, 2008]
    VAG states bio-diesel compatibility only from 1996, but not for the latest 2L tdi's. As for SVO maybe a blend although the jury is out on the long-term issues regarding that.

    I'm looking to twin-tank the A4 (B6 130) very soon, with the amount of mileage i cover i'll break even in 6 months.
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  4. dunk
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    dunk Member

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    [Jun 29, 2008]
    its likely that bio is ok, but your fuel lines and seals may be subject to dissolving - i guess only a trial will say. the engine and pump will be fine

    veggie oil at 30% in diesel is pretty much ok with any engine and pump but since veggie oil is about the same cost as bio you are probably better off with 60-70& methyl ester bio rather than the veggies which is higher viscocity and contains lots of glycerol chains
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