What happens when petrol is used in a car engine?

You'll ruin the engine.

Petrol is British name for Gasoline

Short answer Yes. Petrol is useful for running a engine, and extremely dangerous if misused.

The engine will not run without a supply of petrol so you would think it is useful.

not much, it just makes it harder to start when the engine is warm. but diesel in a petrol car...do not start or it wil destroy it

Your car breaks down and you cant move at all until you find a garage then it costs a fortune! Running petrol in a diesel engine will destroy that diesel engine.

yes it is a chemical change

The petrol is burned in the engine where part of the energy released (roughly one-fourth) is used in moving the car, while the rest is lost as heat and sound energy.

Gasoline in a Diesel vehicle will do some serious damage to the engine.

Who told you it is harmful? It is only harmful if it is a Diesel engine. If it is a petrol (gasoline) engine then Petrol is what it takes to run.

Of course, it is a chemical change.

Yes, putting petrol/gasoline in a diesel engine and running it will cause severe damage to the engine.

Going Technically, In petrol engines the compression ratio used is around 10-12 (may vary according to model of car) and in diesel engines the compression ratio used is 20-22 (may vary according to model of car and manufacturer). So if diesel is put into a petrol engine the compression ratio of the engine is not sufficient for the burning of the fuel (diesel) so there is no power generated in the engine and also the…

electric car uses a battery to run,where a petrol car uses petrol engine to run

A car runs on diesel or petrol depends on the engine of the car