• Raxiel@lemmy.world
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    6 months ago

    Yeah, the fuel injection on modem diesels requires very high pressure and the pumps that form that pressure rewire very tight tolerances/clearances and rely on the fuel as lubricant. Without it, they grind themselves up, ruining both themselves and the injectors downstream with a shower of metal particles.
    The entire fuel system has to be replaced.

      • Raxiel@lemmy.world
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        6 months ago

        I think it depends, I’ve known of someone doing it in an old wreck years ago, and after refilling with the correct fuel it ran as well as it did before (which is to say it smoked and sounded like a bag of spanners). No idea how much it may have shortened what life it had left, but it wasn’t instant death.