* Fuel properties: Diesel and petrol have vastly different properties. Diesel is denser, less volatile, and ignites at a higher temperature than petrol.
* Combustion: Petrol's low ignition temperature means it will ignite prematurely in a diesel engine, leading to:
* Detonation: Violent uncontrolled explosions in the combustion chamber, causing severe damage to pistons, connecting rods, and cylinder heads.
* Pre-ignition: Ignition before the injection event, creating high pressure and heat that can cause engine knock and damage.
* Fuel system problems: Petrol can gum up the fuel injectors, fuel lines, and fuel filter, hindering proper fuel delivery and leading to engine misfire or even stalling.
* Lubrication issues: Diesel engines rely on lubricated fuel lines and injectors. Petrol's different composition can affect lubrication and potentially lead to wear and tear on critical components.
The consequences of adding petrol to diesel can range from minor misfires to catastrophic engine failure.
Never add petrol to a diesel engine. Even small amounts can cause significant problems. If you accidentally added petrol to your diesel fuel tank, it's crucial to:
1. Stop the engine immediately.
2. Contact a qualified mechanic. They will need to drain the tank, flush the fuel system, and inspect the engine for any damage.
Remember, prevention is key. Always double-check the fuel type before filling your tank.
