vehicle
Under the third national standard, vehicles equipped with high-pressure * * rail engines have higher requirements for diesel quality, because high-pressure injectors need to accurately control injection pressure, injection time and injection quantity, so exquisite workmanship is required.
If there is unfiltered water or impurities in diesel oil, it will wear the plunger coupling in the injector and cause strain until the injector is stuck. Damage to the fuel injector will lead to unstable or weak engine acceleration or black smoke, which will affect the normal operation of the vehicle.