* Different Combustion Processes: Diesel engines rely on compression ignition, where the fuel is ignited by the heat generated from compressing air. Petrol, designed for spark ignition, ignites too easily under high pressure, leading to uncontrolled explosions.
* Fuel System Incompatibility: Diesel fuel has a much higher flash point (temperature at which it ignites) and viscosity than petrol. Petrol will not flow properly through diesel injectors, causing clogging and potential damage to the fuel pump.
* Engine Damage: The uncontrolled explosions can cause severe damage to engine components, including pistons, cylinder walls, and connecting rods. This can lead to engine failure and costly repairs.
* Environmental Impact: Unburnt petrol can leak into the exhaust system, emitting harmful pollutants and potentially causing a fire hazard.
What happens when petrol is accidentally put into a diesel engine:
* The engine might start briefly: Due to some petrol vaporizing and mixing with the diesel in the tank, the engine may start, but will run poorly and roughly.
* The engine will likely stall: The incorrect fuel mix will cause engine misfires and eventually stall the engine.
* Damage can occur: Even if the engine is stopped quickly, damage to the fuel system and engine components may already have occurred.
If you accidentally put petrol in your diesel engine:
1. STOP the engine immediately.
2. DO NOT attempt to restart.
3. Contact a qualified mechanic or towing service. They can drain the fuel tank and inspect for damage.
It's crucial to be extremely careful when refueling your vehicle. Double-check the fuel nozzle and ensure you're using the correct type of fuel.
