Oil changes are absolutely essential to the health of an engine and the moving parts that come into contact
Small particles, sludge and soot, from the inside of the engine can move freely around the system and over time can cause many problems.
Oil additives are crucial in maintaining a healthy engine as they neutralise any sludge or sediment on the inside before the old oil is removed.
If you sit in traffic a lot, then the time between oil changes may shorten. The best advice is to check your vehicle handbook to find out the recommended oil change interval for your specific car.