1. Misfiring and Engine Stalling: Diesel has a higher density and lower volatility compared to petrol. When diesel is introduced into a petrol engine, it results in misfiring and engine stalling, as the engine is unable to properly combust the fuel.
2. Fuel System Damage: Diesel fuel can damage various components of the fuel system, including fuel lines, injectors, and the fuel pump. Diesel can degrade the rubber components and seals designed for petrol, causing leaks and potential fuel system failures.
3. Carbon Build-Up: Diesel produces more soot and carbon deposits than petrol when burned. This carbon build-up can accumulate on the engine's valves, pistons, and injectors, leading to reduced engine performance and efficiency over time.
4. Clogged Fuel Filter: Diesel can clog the fuel filter, which is designed to trap impurities from petrol. A clogged fuel filter will restrict fuel flow and could cause the engine to run lean (lacking sufficient fuel), resulting in further engine problems.
5. Engine Wear: Diesel has higher lubricity than petrol. This means that it provides less lubrication for the upper cylinder walls and piston rings compared to petrol. Extended use of diesel in a petrol engine can cause increased engine wear and potential damage to vital engine components.
If you mistakenly put a significant amount of diesel in your petrol car, it's crucial to avoid starting the engine. Instead, have your vehicle towed to a professional mechanic who can safely drain the diesel, flush the fuel system, and perform any necessary repairs to ensure your car is safe and operates properly with petrol again.
