Diesel vs. Petrol (Gasoline):
* Fuel Ignition: Diesel engines use compression ignition. The fuel ignites due to the high heat generated by compressing air in the cylinder. Petrol engines use spark ignition, where a spark plug ignites the fuel.
* Fuel Properties: Diesel fuel is thicker and less volatile than petrol. It also has a higher flash point (temperature at which it ignites).
* Fuel System: Petrol and diesel engines have different fuel delivery systems, pumps, injectors, and combustion chambers.
What happens when you put diesel in a petrol engine:
1. Poor Combustion: The diesel fuel will not ignite properly in the petrol engine's combustion chamber due to the spark ignition system.
2. Engine Stalling: The engine will likely run poorly, sputter, and eventually stall.
3. Fuel System Damage: The diesel fuel can clog the fuel injectors, fuel lines, and other parts of the fuel system designed for petrol.
4. Engine Damage: The thick diesel fuel can cause damage to the pistons, cylinder walls, and other engine components.
5. Oil Contamination: Diesel can contaminate the engine oil, reducing its effectiveness and potentially damaging the engine bearings.
What to do if you accidentally put diesel in a petrol engine:
1. Stop the Engine Immediately: Do not attempt to start the engine again.
2. Contact a Mechanic: A professional mechanic will need to drain the fuel tank, flush the fuel system, and inspect for any damage.
3. Don't try to "fix" it yourself: Trying to resolve the issue yourself could worsen the damage.
It's important to remember:
* Prevention is key: Always double-check the fuel type before filling your car.
* Use the correct fuel: Filling your car with the wrong fuel can be costly and damaging.
In short, putting diesel in a petrol engine is a mistake that can lead to serious engine damage and costly repairs. Seek professional help immediately if you accidentally do this.