What needs to be replaced for a 30,000-kilometer maintenance?

[Archer]

Here is a detailed introduction on what should be done after the car has traveled 30,000 kilometers: 1. Replace the air filter. After the car has traveled 30,000 kilometers, the air filter will be covered with a lot of dust and oil stains, and its performance will be greatly affected. Therefore, it is best to replace it to ensure its working performance. Most car maintenance manuals clearly stipulate that the air filter must be replaced after the car has traveled 30,000 kilometers. 2. Replace the oil filter. The principle is very similar to that of the air filter. After the car has traveled 30,000 kilometers, the oil filter will accumulate a lot of impurities, greatly reducing its lubrication and cooling functions. Therefore, regular replacement is also necessary. 3. Clean the fuel system. This includes cleaning the combustion chamber fuel system and the engine interior. The fuel system cleaning mainly removes carbon deposits, which are deposits formed by the incomplete combustion of lubricating oil and gasoline. It is necessary to analyze the actual condition of the car. If the issue was addressed during the last maintenance, then this step can be skipped.