Here's why:
* Different Combustion Processes: Petrol and diesel engines have vastly different combustion processes. Petrol engines use spark plugs to ignite the fuel-air mixture, while diesel engines rely on compression heat to ignite the fuel.
* Fuel Properties: Diesel fuel has a higher flash point and viscosity than petrol. This means that the oil used in a diesel engine needs to be thicker and more resistant to heat to handle the higher combustion temperatures and pressures.
* Additives: Diesel engine oil contains specific additives designed to handle the unique properties of diesel fuel, including detergents to clean soot buildup and anti-wear agents to protect against the high wear rates.
Using the wrong oil can:
* Damage your engine: The wrong oil can break down under the extreme conditions of a diesel engine, leading to sludge buildup, reduced engine performance, and even catastrophic engine failure.
* Void your warranty: Using the wrong oil can void your engine warranty.
Always use the oil that is specifically recommended for your vehicle's engine type. You can find this information in your owner's manual or by consulting your local mechanic.
