Is rolling coal bad for a diesel engine?

While we recognize diesel enthusiast's love for diesel engines and the performance of their vehicles, the practice of tampering with engines and emissions controls for the purpose of generating excess emissions on demand - 'known as rolling coal' - is offensive, unsafe and harmful to the environment.
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Why do diesel trucks roll coal?

Rolling coal has origins in truck pulls, in which pickups compete to pull a heavy sled the farthest. Drivers modify their trucks to pump excessive fuel into the engines, increasing horsepower and torque. Stripped of emissions controls, the trucks also bellow thick, black smoke.
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Is black smoke bad for a diesel?

Black smoke is partially-burned fuel. An engine that's running properly will burn all of the diesel fuel completely, making CO2 and water. So black smoke means something is causing the fuel to not burn completely.
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How do I make my diesel smoke black?

Incomplete combustion occurs and soot is formed when there is an overabundance of fuel (both diesel fuel and lube oil), insufficient residence time in the combustion zone, and/or non-availability of sufficient oxidants. Over-fueling is the primary cause of black smoke from the exhaust of a heavy duty diesel engine.
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How do I get my diesel truck to roll coal?

According to the website Truck of Mine, another way to modify a diesel truck to roll coal is by aggressively custom-tuning the truck and installing bigger injectors. Injectors pump large amounts of fuel into the engine during each injection cycle, while the tuning fools your engine into wanting more fuel.
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Why You Should Roll Coal...



Is Coal rolling illegal?

So, is it illegal? According to the Environmental Protection Agency, the answer is yes. The EPA says that "aftermarket performance modifications" that disable emissions control technology are violations of the Clean Air Act.
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What's the point of rolling coal?

Rolling coal is the practice of modifying a diesel engine to emit large amounts of black or grey sooty exhaust fumes—diesel fuel that has not undergone complete combustion. A predominantly North American phenomenon, rolling coal is sometimes used as a form of anti-environmentalism.
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What does Blue smoke mean in a diesel?

Blue exhaust smoke in a diesel vehicle could still mean oil is being burned, but it could also mean the engine oil is being atomized. This could be caused by: High engine oil levels. Worn out piston rings. Old valves or cylinders.
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What does white diesel smoke mean?

White Smoke:

White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly. Unburned diesel fuel will make its way through the exhaust completely unused.
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What does grey smoke from a diesel mean?

Jammed turbocharger – Burning excessive amounts of oil, slow acceleration and excessive grey coloured smoke are the typical signs of a worn-out turbo. The longer your drive your vehicle with a failing turbo, the more damage you cause to your engine and therefore the most costly it will be to fix.
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Does rolling coal waste fuel?

Rolling coal wastes fuel, which means that your engine is less efficient. That harms the environment. In fact, many people who opt to modify their engines in this way do so because they want to take an anti-environmentalism stance.
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Why do tuned diesels smoke?

Usually this is due to one of two reasons - not enough air to burn the fuel, or not enough time for it to burn. In a tuned vehicle, fuelling is increased to make sure all of the air available is used up for maximum power.
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Why do older diesels smoke?

The Science Behind the Smoke

Black smoke represents partially burned fuel. It's much more apparent in older diesel engines than in modern common-rail diesel engines. This is because older vehicles don't have computers that regulate emissions output like newer engines do.
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How can I make my diesel louder?

Well, now, there is an option, a Sound Booster. A sound booster can be fitted to modern diesel vehicles which make the car sound like a high-powered V8 petrol engine. Sound booster consists of a module, connected to the ECU of the vehicle, and a sound box that delivers the tone.
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Is it legal to delete a diesel truck?

Myth #1 – Deleting or Tuning a Truck is Legal

There is no way around this; it is 100% illegal to tamper with or modify the emission system on your truck in any way. It isn't a state or local law (although those exist, as well), but Federal law.
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Why do diesels last longer?

Diesel fuel is a type of distillate fuel that is essentially produced from crude oil, which gives diesel engines slower cylinder wear than gasoline engines. This gives diesel fuel lubrication properties that extend the overall lifespan of the engine.
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Do diesels smoke in cold weather?

This is very common. It will often happen at startup in cold weather with lower compression engines. As you start running the engine at idle (around 650 or 750 rpm), you will achieve a more effective compression ratio, and the smoke clears.
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Why do diesels smoke when cold?

A plume of white smoke is generally most noticeable at diesel startup, particularly when it's cold. This is due to the fact that colder air, which is more dense than warm air, lowers temperatures in engine cylinders at the end of the compression stroke.
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What does grey smoke mean?

Blue or Grey Smoke

If the smoke from the exhaust pipe is either grey or bluish-tinged, it generally means that your engine is burning oil inside the combustion chamber. Burning oil could be due to a number of causes, from leaky valve seals to bad piston rings.
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What color smoke is unburnt fuel?

White smoke is caused by raw, unburnt fuel passing into the exhaust. White smoke smells and will often sting your eyes, which is the effect from raw diesel. Low cylinder compression Low cylinder compression may be caused by leaking valves, sticking, or worn piston rings, cylinder wear, or cylinder glaze.
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Why are so many diesel engine turbocharged?

Fuel efficiency: Diesel is 33% more fuel-efficient than gasoline, and turbochargers further increase diesel fuel efficiency. Improved performance: While ramping up horsepower, they lower emissions and improve altitude compensation. Turbocharging an engine increases the power output of a given engine weight.
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Why do diesel engines backfire?

A backfire is caused by a combustion or explosion that occurs when unburnt fuel in the exhaust system is ignited, even if there is no flame in the exhaust pipe itself.
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Is Coal rolling assault?

" 'Rolling coal' when a person is in the vicinity and when the individual 'rolling coal' intentionally or knowingly causes that excess exhaust to contact that bystander is at a minimum an assault," Waller County District Attorney Elton Mathis wrote on Facebook.
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