Question

why diesel cannot be used in petrol engine short answer and easy​

Answer 1

Answer:

Since the volatility of the petrol is greater than diesel, if we use diesel on petrol engine, the carburetor cannot produce fine vapourised mixture of air-diesel due to low volatility of diesel, hence this improper mixture reaches the combustion chamber.

Answer 2

Answer:

Petrol ignites by a spark from the spark plugs. Diesel in a petrol engine clogs up the spark plugs and fuel system. That means the car simply won't start and emits smoke.