What are the three filters in a car and how often should they be replaced?

[Espírito Santo]

Car three filters refer to the air filter, oil filter, and fuel filter. The oil filter should be replaced along with the engine oil. The air filter is normally replaced every 15,000 kilometers, the external fuel filter every 20,000 kilometers, and the internal fuel filter (located inside the fuel tank) every 40,000 kilometers. The specific replacement intervals should be based on the actual operating conditions of the vehicle and the maintenance manual. The functions of the three filters are as follows: 1. They filter air, engine oil, and fuel, thereby protecting the engine and improving its working efficiency. 2. Timely cleaning and maintenance of the three filters can fully utilize the engine's performance, reduce the engine failure rate, and help extend the engine's service life.