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Thread: Bio-diesel and warranty

  1. #1
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    Question Bio-diesel and warranty

    I'm looking at a 2011 Defender and the seller who works for a large interstate freight company casually admitted to using bio-fuel occasionally (blended with regular diesel) We were discussing the quality of diesel in Oz and he informed me that the big rigs use a lot of bio-diesel.

    Are there any potential problems running bio-diesel in a Puma engine and if issue was to develop with the fuel system, could Land Rover deny a warranty claim (would there be any evidence left behind in the fuel filter?)

  2. #2
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    RTM

    the permissable % of bio in a puma is.... 0.

    yes, it leaves traces

    LR would jump on you.
    Dave

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  3. #3
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    All Australian diesel can be up to 5% bio without labelling.

    If you have put a several tanks of fuel through and changed the engine oil, then you cannot detect that it had run bio.

    There was a recent French study on a diesel fleet (including commonrail) over 12 years. Half the fleet were running bio and half not. Engines were dismantled after the study and no difference found.

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    Quote Originally Posted by isuzurover View Post
    All Australian diesel can be up to 5% bio without labelling.

    If you have put a several tanks of fuel through and changed the engine oil, then you cannot detect that it had run bio.

    There was a recent French study on a diesel fleet (including commonrail) over 12 years. Half the fleet were running bio and half not. Engines were dismantled after the study and no difference found.
    So I would gather by your statement you'd not be concerned about buying a s/h Puma that had been run on bio?

    I would't plan on running it myself on bio, just concerned that if I have to make a warranty claim it could be rejected.

  5. #5
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    Quote Originally Posted by iClick View Post
    So I would gather by your statement you'd not be concerned about buying a s/h Puma that had been run on bio?

    I would't plan on running it myself on bio, just concerned that if I have to make a warranty claim it could be rejected.
    Scroll down here:
    Fuel Quality in Australia - Diesel fuel quality standard

    Unless you took it into them with a tank full of fuel that contained >5% Bio, LR would have no way of knowing if your vehicle has been running bio or just pump diesel with <=5% Bio.

    IMHO it wouldn't stop me buying the vehicle if the price was right.

  6. #6
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    Thanks for the information - I plan on inspecting the vehicle soon and I feel a bit more comfortable knowing that the bio-diesel issue isn't necessarily a big issue in this case.

  7. #7
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    Quote Originally Posted by iClick View Post
    Thanks for the information - I plan on inspecting the vehicle soon and I feel a bit more comfortable knowing that the bio-diesel issue isn't necessarily a big issue in this case.
    A bigger issue is the quality of the BD it ran and how long it was taking to get through a tank at the time. The biggest issue in commonrail engines seems to be oxidative breakdown due to high temps and mots of fuel recirculation.

    In short - BD + short trips or low km not a good idea.

  8. #8
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    Quote Originally Posted by iClick View Post
    I'm looking at a 2011 Defender and the seller who works for a large interstate freight company casually admitted to using bio-fuel occasionally (blended with regular diesel) We were discussing the quality of diesel in Oz and he informed me that the big rigs use a lot of bio-diesel.

    Are there any potential problems running bio-diesel in a Puma engine and if issue was to develop with the fuel system, could Land Rover deny a warranty claim (would there be any evidence left behind in the fuel filter?)
    read youre manuel for warrenty clause
    bio-diesel not allowed

  9. #9
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    Quote Originally Posted by isuzurover View Post
    All Australian diesel can be up to 5% bio without labelling.

    If you have put a several tanks of fuel through and changed the engine oil, then you cannot detect that it had run bio.

    There was a recent French study on a diesel fleet (including commonrail) over 12 years. Half the fleet were running bio and half not. Engines were dismantled after the study and no difference found.
    the problem here is that european diesel is far better than ours !
    even their bio-diesel is better

    and by the way this australia and european results do not reflect our fuels

  10. #10
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    Quote Originally Posted by ALBI View Post
    read youre manuel for warrenty clause
    bio-diesel not allowed
    I think a manufacturer will be hard pressed on knocking back a warranty claim related to the legislated limit of up to 5% BD in diesel. Aust warranty provisions override manufacturers provisions where they conflict or the manufacturers provisions are unreasonable.

    Garry
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