Petrol in diesel engine?

Petrol in diesel engine?
Please don't do that. It will blow the head right off of your engine.
This is because gasoline is more explosive then diesel.


For example, if you have a gallon of gas, and you explode it, the resulting explosive gas generated would be larger than if you managed to explode a gallon of diesel.

So your diesel pump would dump so much gasoline into the cylinder, that when it burned, it would destroy your engine.

Also, you need to realize that diesel is burned every stroke since it does not need a spark. If you would crank the diesel engine with petrol being injected, it would not combust until it dumped so much gasoline into the engine that the pressure and amount of gasoline would make it light up.

With that much gasoline in a cylinder, the explosion would be epic (hence why the engine would be kind of totaled).

A2
It happens a lot and so far no ones engine has actually exploded.
Petrol needs mixing with air in exactly the right proportions and ignited with a spark.
This does not happen in a diesel engine. Diesel ignites by compression of air causing heat, which ignites oil, when sprayed in a mist, via an injector.
Petrol will however remove all the lubrication from the injectors and pumps, causing damage. The engine will not run on petrol, but when replaced with the proper fuel, damage may have already occured, as the last useable mix of diesel and petrol go through the system.