Not universal. The working environment of diesel and gasoline engines is different, and the requirements for diesel engine oil and gasoline engine oil are also different. Usually, diesel engines need to add more additives to the oil. The biggest difference between diesel engine oil and gasoline engine oil is in viscosity and oil film thickness.

Can diesel engine oil and gasoline engine oil be interchangeable? - Yes

The clearance between diesel engines is relatively large, and the engine's knock is relatively high. Therefore, the viscosity of diesel engine oil is relatively high, and the oil film is relatively thick. Generally speaking, diesel engine oil with the same viscosity level has a higher viscosity than gasoline engine oil. The oil in gasoline engines is relatively poor, so if a diesel engine uses gasoline engine oil for a long time, it can cause damage to the engine.

If diesel engine oil of the same viscosity level is used in a gasoline engine, it will also cause problems, and the service life of the oil will be reduced. The wear caused by low temperature starting will result in slow oil application during low temperature starting. Although the oil pressure is high at this time, the oil delivery performance is poor, leading to dry friction, which is the main cause of engine wear.