How often should a sedan undergo major maintenance?

[DelJosie]

Major maintenance for a car is typically performed every three years or 60,000 kilometers, while minor maintenance is done every three months or half a year. Major maintenance is based on the existence of minor maintenance, and these two types of maintenance are usually alternated. Below is information about car maintenance: 1. Post-driving inspection and maintenance items: Check and replenish fuel and lubricants. Clean the interior and exterior of the vehicle, as well as the engine and chassis. 2. Vehicle primary maintenance items: Clean the body and wipe the engine and chassis parts. Clean and maintain the air filter. Clean the gasoline filter. 3. Vehicle primary maintenance lubrication tasks: Check the oil levels of the engine, transmission, rear axle, and steering gear, and add lubricating oil as required. 4. Vehicle primary maintenance inspection and tightening tasks: Inspect the steering gear, tie rod, drag link, and the connection and tightening condition of each steering arm.