yes
You don't want your gasoline powered engine smoking black. If it does, then you have some SERIOUS mechanical problems. Black smoke is for diesels. Keep it that way!!!!
Under heavy acceleration all diesels produce black smoke. It's a product of waste fuel being exited via the exhaust pipe and is a sign of inefficiency. Older diesels also produce black smoke under "normal" conditions and this also a cause of unspent fuel, but mainly because of age.
White, water vapor. Gray/black unburned gasoline. Blueish, burning oil.
Their injection pump is set too rich, and lets more diesel into the engine than the engine can burn. The partially/badly burned diesel is what comes out as black smoke.
Black smoke from the exhaust indicates it is putting too much fuel into the engine. Take it to a mechanic and have it checked.
Take a second, lightly sniff gasoline fumes before its been burned, then compare with exhaust fumes, and see which you are smelling. Exhaust fumes you'll naturally smell around an idling car. unburned gasoline could be the result of an improperly set carb, mixing the wrong amounts of fuel and air, leaving you with unburned gasoline that is boiled, evaporated, and spit out the exhaust. Too much evaporated gas turns your exhaust black, so ive been told, so there could be a sign.
emissions and exhaust
If you have black smoke coming out it would be because you have bad timings, i have a buddy who had that happen to his jeep and we replaced the spark plugs and air filter and fixed the timing and it solved the problem, but wen you blow black smoke its because of bad timing it happens with diesels to.
For diesels, black smoke is normal. For gasoline engines, black smoke indicates that the engine is getting too much fuel. Check air filter, oxygen sensor, possibility of a stuck injector, throttle position sensor. A lot of that stuff can be checked by reading the computer codes.
how can i get black exhaust smoke stuck on my dual exhaust
He is a US citizen of Italian and black ancestry
In most cases white smoke means you are burning gasoline inefficiently, black and gray are usually oil, however, that's the extent of my knowledge.