What is the optimal interval for a major car maintenance?

[DePeyton]

Major maintenance is typically performed every 20,000-30,000 kilometers or every 2 years. Below is an introduction to the intervals and contents of major car maintenance: Contents of major car maintenance: Major maintenance primarily involves the replacement of multiple parts and fluids, including a full inspection of all vehicle fluids such as brake fluid, antifreeze, power steering fluid, and transmission fluid. Additionally, it includes procedures like carbon deposit removal, battery replacement, spark plug replacement, and timing belt replacement. Intervals for major car maintenance: Major maintenance is based on the existence of minor maintenance, and these two types of maintenance are generally alternated. The intervals vary depending on the car brand, so it is best to follow the manufacturer's recommendations.