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Knowing about the Causes, types of Exhaust of vehicles

As we are aware about the fuels used in our vehicles, its our responsibility to know about it. Like any other machines, IC engines is not 100 percent efficient as a result of incomplete combustion of fuel, smoke formation takes place.


More exhaust is generated when rich mixture of fuel is used which may cause the formation of Soot  (black substance due to incomplete combustion of fuel). 
While travelling you might have observed smoke coming from exhaust of vehicles, but to add on there quite a few types of smoke coming out vehicles.  
  • Blue smoke 
  • White smoke.
  • Black smoke. 
  • Grey smoke   
Blue Smoke: A worn out engine is one of the reason for formation of blue smoke. In Engines there is a component called piston ring. Due to problem in this piston ring. (which prevents excessive consumption of oil) Thus  Blue smoke is formed.

White Smoke: Due to engine coolant leak, condensation happens in the exhaust pipe which gets heated during the start of vehicle and results in formation of white smoke. we cannot call it as smoke it gets quickly evaporated.

Black Smoke: As the vehicle begins to used much, the efficiency reduces and the fuel injector gets worn out in case of  diesel engines  causes more fuel to be wasted  and it is not completely combusted.
Improper maintenance of vehicle black smoke is formed.And if air and fuel is not mixed properly black smoke may form.

Grey smoke: Like how blue smoke is formed due to excessive burning of oil causes grey smoke.If coolant gets mixed with oil this type of smoke may be emitted.

Mainly the type of load,type of fuel and the speed at which engine is travelling has a major role in the exhaust produced from any vehicle.

Hope this bunch of  basic information about the exhaust. so next time you see smoke I hope this blog comes to your mind.. 











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