This is the most common question asked and probably the most misunderstood part of car care.
Depending on your vehicle make and model, the factory guidelines may vary on when you should bring your vehicle in for servicing.
However, the difference between the type of service due can be extreme. To make sure, you should check the car handbook for what is required at each service.
Typically, normal services are generally performed at 10,000km intervals while major services are performed at 40,000km intervals.
Changing engine oil and filter/s is always a necessary service on both normal and major service intervals.
This means that the cost can be different each time you have your vehicle serviced. The vehicle manufacturer provides a comprehensive list of areas serviced at the stated kms driven.
Other factors can also have an impact such as previous service history and usage ie short trips, long trips, stored outside or garaged etc.