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

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

  • Grass@sh.itjust.works
    6·
    9 months ago

    When you catch up to the smogmobile that went into the wrong lane to pass you ten minutes later at a stoplight…