Whether you drive a new or used car, changing the engine oil is a must to keep your vehicle running smoothly. Oil change intervals may vary, with the main recommendation being the manufacturer's warranty claims or the information contained in the service book.
As a rule, on most modern cars, it is recommended to change the engine oil at a mileage of 4,000-6,000 miles after the last maintenance.
Oils often lose their original properties, such as density or viscosity. If you usually go on long-distance business trips, for example, or travel with your family, you may need to change the engine oil more often for the car's safe operation.