Reply To: Why petrol cannot be used in diesel engine?

#2984 Reply

the self ignition temperature of petrol is greater than diesel..
In diesel engine the air is so compressed that it has the temperature of self ignition temperature of diesel .sowhen the fuel(diesel) is injected , it burns…
On the other hand if petrol is to be used it is to be compressed to a large extent even far greater than in case of normal diesel engine…such a high compression ratio is not desirable (though compression ratio is necessary to increase efficiency…it is to be limited to a certain value otherwise it may damage engine parts)

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