What are the differences between 4 stroke petrol and 4 stroke diesel engines?

Engine

Difference Between 4 Stroke Petrol Engine and 4 Stroke Diesel Engine
4 Stroke Diesel Engine	4 Stroke Petrol Engine
These engines work on the Diesel cycle	Works on the Otto cycle
The fuel is mixed with air inside the cylinder	Air and the fuel are mixed in a carburettor
Ignition is achieved with the help of the hot, compressed air.	Fuel is ignited with an electric spark
High compression ratio	Relatively low compression ratio
High power production	Relatively low amounts of power are produced in a Petrol engine
These engines work with fuels that have low volatilities	Highly volatile fuels are used in these internal combustion engines
Generally used in heavy vehicles such as trucks and buses	Used in light vehicles such as motorcycles and cars.
Relatively low fuel consumption	High fuel consumption.
High initial and maintenance costs	Comparatively low initial cost and maintenance cost
The temperature of the compressed air auto ignites the fuel	The charge is ignited with the help of spark plug
Low speed engine	High speed engine

*SELF TYPED
*SOURCE: Internet and Books