Difference Between Petrol Engine and Diesel Engine

Difference Between Petrol Engine and Diesel Engine Points : Difference Between Petrol Engine and Diesel Engine, compare Petrol Engine and Diesel Engine

Difference Between Petrol Engine and Diesel Engine
	Petrol Engine	Diesel Engine
1.	Due to low compression it is effortless to start.	Its higher compression ratio creates its starting not easy.
2.	Due to higher cost of petrol its running cost is more although its initial cost is lesser.	Its initial cost is high due to heavy construction. But its running cost is comparatively lesser due to the diesel being cheaper.
3.	Its lighter heaviness, its use in light duty vehicles similar to Mopeds, Scooters. Motor Cycles, Cars, Aero planes and so on.	Its heavier weight it is usually use in heavy duty vehicles similar to Bus, Trucks, Tractors, locomotives, bulldozers and, etc.
4.	They are also call as spark ignition engine.	They are also call as comparison ignition engine.
5.	Flaming of fuel of the combustion take place about at constant is at the top dead centre	Combustion takes place about at stable pressure.
6.	Pressure at the end of compression is low down.	At the end of compression, the pressure is high.
7.	To give suitable mixture of air and petrol, a carburetor is use.	Intended for inject the fuel into the cylinder, fuel pump and injector are use.
8.	It generally works on Otto cycle.	It functions on Diesel cycle.
9.	To make the spark for igniting the air-petrol combination a spark plug is use.	It’s not need a spark plug. Fuel inject in the hot air get ignited automatically suitable to the very high temperature of the compressed air gone the compression stroke.
10.	Its maintenance price is higher.	It is reasonably cheap to maintain.