Here's why:
* Different Viscosity: Diesel engines require a heavier oil with a higher viscosity (like 15W-40 or 5W-40) to withstand the higher temperatures and pressures involved in diesel combustion. 10W-30 is too thin for diesel engines and can lead to:
* Excessive wear: The thinner oil won't provide adequate lubrication under heavy loads.
* Reduced engine life: The oil can break down quicker and cause premature wear.
* Increased fuel consumption: Thin oil can't seal the piston rings as well, resulting in blow-by and less efficient combustion.
* Additives: Diesel oils are formulated with specific additives to handle the unique demands of diesel engines. 10W-30 oil, designed for gasoline engines, won't have these additives.
Always refer to your vehicle's owner's manual for the recommended oil type and viscosity. Using the wrong oil can severely damage your diesel engine.
