The most frequent car maintenance item is the replacement of engine oil and oil filter, which is a core step in maintaining engine health. Fully synthetic oil typically needs to be changed every 10,000 kilometres or 12 months, while mineral oil or semi-synthetic oil requires a shorter interval of 5,000 to 7,500 kilometres; the specific cycle should refer to the vehicle manual. The cleaning or replacement of the air filter is also frequent; It is best to check and clean it every 5,000 kilometres and replace it every 10,000 to 20,000 kilometres, and this should be done earlier if the vehicle is often driven in dusty environments. In addition, tyre pressure and wear should be checked monthly, and tyres should be rotated every 10,000 kilometres to balance wear; tyres must be replaced when the tread depth is less than 1.6 millimeters. Although other fluids such as brake fluid and coolant have longer cycles (about 2 years or 40,000 kilometres), they cannot be ignored either. It is recommended that car owners strictly follow the manufacturer's maintenance plan and keep records to ensure the long-term stable operation of the vehicle.
