Is it acceptable to change car engine oil once a year?

[DelEli]

Changing car engine oil once a year is acceptable, provided that the mileage driven within that year is relatively low; if the annual mileage is higher, it is recommended to change the oil twice a year to ensure the normal operation and internal cleanliness of the engine. The frequency of oil changes should primarily be based on mileage. Generally, mineral oil can be changed every 5,000 kilometers; synthetic oil can extend this interval to between 8,000 and 10,000 kilometers. Engine oil, also known as motor oil or engine lubricant, is a substance enhanced with additives in base oil, primarily containing anti-wear additives, detergents, dispersants, and multi-grade oil viscosity index improvers. Engine oil is used for lubricating internal combustion engines.