* Different Combustion Characteristics: Diesel and petrol ignite differently. A petrol engine relies on spark plugs to ignite the air-fuel mixture, while a diesel engine uses compression. A mixture will lead to incomplete combustion, causing damage to engine components.
* Lubrication: Diesel fuel contains lubricating properties that petrol lacks. Mixing them will reduce the lubrication in a diesel engine, leading to increased wear and tear.
* Fuel System Damage: The different chemical properties can cause damage to fuel injectors, fuel pumps, and other parts of the fuel system. This damage can be extensive and costly to repair.
* Engine Seizure: In the worst-case scenario, the mixed fuel can cause your engine to seize up completely, requiring a major and expensive overhaul or replacement.
If you've accidentally mixed the fuels, do not attempt to start your engine. Have the fuel tank drained and cleaned by a qualified mechanic. This is a critical step to prevent costly engine damage.