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Just to add to the information on this thread, and I feel this will be relevant here: Rolling Coal is accomplished by running the fuel to air ratio very rich,

Just to add to the information on this thread, and I feel this will be relevant here: Rolling Coal is accomplished by running the fuel to air ratio very rich, nearly all diesel motors cannot accomplish this without modifications to the engine and the emission control system. Generally this is a side effect of some modifications meant for increasing power by increasing fuel flow but taking it past the point all of the fuel can be burned; either on purpose to roll coal or on accident because of mistuning. The idea behind rolling coal, in my experience, is showing off your diesel motor which is many times more expensive and powerful than standard gasoline motor, and showing off it has been modified for even more power. The article is most likely vaguely referring to this "Prius Repellent" YouTube video when it talks about rolling coal: https://youtu.be/hsC0kLNSLAQ https://youtu.be/hsC0kLNSLAQ Although at the same time you have more popular Youtubes talking about how rolling coal is just a little too obnoxious: https://youtu.be/HjCPW2nj7do https://youtu.be/HjCPW2nj7do The primary purpose behind rolling coal is not to attack Priuses, although it is absolutely terrible for the environment, and to nearly everyone very obnoxious.

gm-conspiracy 9y ago
Are your "rolling coal" experiences based in WV?
- WonkeyMonkey 9y ago
  No, although I'm sure that rolling coal and "Prius Hunting" are separate terms in West Virginia. The article conflates rolling coal with "Prius hunting", which probably isn't intentional. The Wikipedia article for rolling coal also does this. The main reason for my post was differntating these two ideas. Online this seems quite politicized. Perhaps it is exactly that, and my experiences are just different, that's the problem with anecdotes. But my experiences come from car shows where people from across the country travel to host events. A truck will "roll coal" while on a dynamometer with only other "truck guys" around who are not bothered by the fumes. Although while I was searching for the videos I was using as examples in my previous comment, I saw many videos such as "rolling coal on protesters" and many "Prius hunting videos". I find actions such as these poor form and I'm not trying to defend them. Both are obnoxious and polluting, but only one is intentionally malicious in nature.

gm-conspiracy 9y ago

Are your "rolling coal" experiences based in WV?

WonkeyMonkey 9y ago
No, although I'm sure that rolling coal and "Prius Hunting" are separate terms in West Virginia. The article conflates rolling coal with "Prius hunting", which probably isn't intentional. The Wikipedia article for rolling coal also does this. The main reason for my post was differntating these two ideas. Online this seems quite politicized. Perhaps it is exactly that, and my experiences are just different, that's the problem with anecdotes. But my experiences come from car shows where people from across the country travel to host events. A truck will "roll coal" while on a dynamometer with only other "truck guys" around who are not bothered by the fumes. Although while I was searching for the videos I was using as examples in my previous comment, I saw many videos such as "rolling coal on protesters" and many "Prius hunting videos". I find actions such as these poor form and I'm not trying to defend them. Both are obnoxious and polluting, but only one is intentionally malicious in nature.