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A practice typically done by rednecks with their diesel pickup trucks, tweaking the ECU and fuel profiles run the engine overly rich so the exhaust billows out
by Arrath 4y ago
A practice typically done by rednecks with their diesel pickup trucks, tweaking the ECU and fuel profiles run the engine overly rich so the exhaust billows out thick black clouds (thus, "rolling coal"), particularly when they rev the engine.
- jutrewag 4y agoDisgusting. I just watched some videos and it seems to be mostly used as a soft attack on bicyclists, environmentalists, pedestrians, people on the left etc. Some “anti-environmentalists” were literally sticking their face right next to the exhaust while it was rolling coal to make a point lol. That’ll show them.
- userbinator 4y agoIt's usually done as a form of protest, and in the same way as a horn, not continuously.