Difference between Petrol and Diesel Engine

Question

Accepted Answer

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

Petrol engines have higher RPMs and are more suitable for high-speed driving.
Diesel engines have higher torque and are more fuel-efficient.
Petrol engines are lighter and quieter while diesel engines are heavier and noisier.
Petrol engines emit more CO2 while diesel engines emit more NOx and particulate matter.
Examples of petrol engines: Honda Civic, Toyota Corolla. Examples of diesel engines: Ford F-150, Ram 1500.

Accepted Answer

Answer 
Petrol engine 
It works on otto cycle .
It has ports .
Its engine is small and light .
The engine is lightweight .
It has a carburetor .
It cannot travel long distances .

Diesel engine 
It works on diesel cycle.
It works on an air compressor.
It also has valves.
The design of this engine is complex .
It can easily cover long distances .
This is seen in big car.

Difference between Petrol and Diesel Engine

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