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

  • hiddengoat
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    121 year ago

    You don’t even see that shit out of semis anymore. It’s just burning fuel for no reason.

    • ferret
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      81 year ago

      Hate to be that guy, but half the problem with this stuff is how much of it is unburnt