Rolling coal is the practice of tampering with a vehicle’s emissions control system, causing it to spew black clouds of sooty exhaust.

  • grue@lemmy.world
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    1 year ago

    A little smoke is a symptom of making more power. A lot of smoke just means you failed to add enough air to go with it and are pointlessly polluting and wasting fuel.

    (Side note: my diesel VW, which is modified for more power but also is typically fueled with 100% biodiesel, produces less smoke than it did stock.)