Petrol engines use spark ignition while diesel engines use compression ignition.

• Petrol engines use spark plugs to ignite the fuel-air mixture, while diesel engines rely on compression to ignite the fu...read more

Petrol is fast burning one and less noise

Diesel is slow burning and more noise

In diesel engine fresh air supplied during suction stroke and compressed so diesel in is injected due to furl injector and in petrol engine also have spark plug for fuel injection, petrol and air both...read more

In diesel engin there is, during suction stroke only fresh air is spupplied and compressed , and diesel is injected seperatly by fuel injector.

And in other hand, in petrol engin petrol and air both ...read more

In diesel engin there is, during suction stroke only fresh air is spupplied and compressed , and diesel is injected seperatly by fuel injector.

And in other hand, in petrol engin petrol and air both ...read more

In petrol engine mainly we are using spark plug for combustion ,in diesel engine direct ignition no use of spark plug