Conventional car maintenance covers the following 20 key aspects: 1. Tire pressure inspection: This is the primary step in car maintenance. It is necessary to carefully check the condition of the wheels and tire pressure, and check whether there are nails or other foreign objects stuck into the inner tube. Once found, the tire should be repaired in a timely manner. 2. Chassis inspection The chassis is an important component of a car, and it is mainly inspected for oil leakage and loose screws. After long-term driving, vulnerable parts such as rubber sleeves and oil seals under the car may experience oil leakage due to aging, so regular inspections are crucial. 3. Oil and oil filter replacement The replacement of engine oil and oil filter is usually an essential part of every car maintenance. Automotive engine oil can generally be divided into three categories: mineral engine oil, semi synthetic engine oil, and fully synthetic engine oil, and the replacement cycle of different types of engine oil also varies. 4. Replacement of intake filter screen As the usage time increases, the intake filter will become clogged due to dust and impurities in the air, thereby affecting its intake efficiency. Therefore, in order to ensure the normal operation of the engine, we need to regularly replace and clean the intake filter. 5. Brake system inspection As the vehicle is used, the brake fluid in the braking system may gradually decrease, affecting the braking effect. Meanwhile, brake pads and brake discs are also components that are prone to wear and tear. Therefore, during routine maintenance of the vehicle, these key components should be inspected one by one to ensure that they are in good condition. Once any problems are discovered, they should be replaced or repaired immediately to ensure the safety of driving. 6. Antifreeze replacement Automotive antifreeze, a key liquid that protects the engine in cold winter, not only has antifreeze function, but also can cool down the engine during operation. As the mileage of the vehicle increases, the performance of the antifreeze may gradually decrease. Therefore, it is recommended to replace the antifreeze with a new one every three years or after driving 50000 kilometers to ensure that the engine can run safely and efficiently in winter. 7. Glass water replenishment Glass water, a necessary item for cleaning car windshields, should be added promptly after use. Especially when using vehicles in winter, it is recommended that car owners choose antifreeze glass water to prevent damage to the glass kettle due to freezing, thus ensuring that the glass water can be used normally. 8. Wiper blade replacement To ensure clear visibility while driving, it is recommended that car owners check and replace wiper blades every 6 months to 1 year, depending on usage. Once the wiper blades make abnormal noises or fail to clean properly, they should be replaced immediately. 9. Spark plug inspection According to diff