In general,The replacement cycle of mineral engine oil is about 5000 km or about 6 months, semi-synthetic engine oil is about 7500 km or about 6-8 months, and fully synthetic engine oil is about 10000 km or about 1 year.
However, this is only a general reference, and it needs to be adjusted according to the actual situation. For example, the type of engine and maintenance requirements. Changing the oil in a timely manner is key to ensuring the proper operation of the engine, but there is no strict limit to the oil change interval.
The oil change interval for automotive oil varies depending on the type of oil, driving conditions, and the maintenance requirements of the car company. For example, in order to ensure high performance, some engines use high fuel grades, required oil standards and oil change intervals.
Overall, here are some common reference standards:
Oil type: Different types of motor oil have different properties and lifespans. In general, fully synthetic motor oils have a longer performance and lifespan, while mineral motor oils have a shorter life. As a result, fully synthetic oils typically have longer replacement intervals than mineral oils.
Driving conditions: Driving conditions can also affect the oil change interval. For example, a car that is often driven in hot, cold, dusty, or humid environments may need to change its oil more frequently. In addition, if the car is frequently on short trips, or in congested city traffic, it may also be necessary to change the oil more frequently.
Maintenance requirements of the car company: The car company usually provides requirements on when to change the engine oil according to the characteristics of the engine. This can be noted in the car's owner's manual or found on the car manufacturer's official **. It is advisable to follow the recommendations of the car manufacturer to ensure that the car engine is properly protected.