Is it necessary to replace the three filters when changing the engine oil?

[Ellis]

It is necessary to replace the three filters when changing the engine oil. The core material of the oil filter is filter paper, which is particularly difficult to clean. Many fine impurities filtered out get trapped inside the filter paper, and even if the exterior is cleaned, the internal impurities remain difficult to remove. Continued use of a dirty filter can lead to reduced lubrication oil pressure, directly causing increased engine wear. Below is an introduction to related car maintenance procedures: 1. Exterior inspection: Before driving, check the doors, engine hood, trunk, and glass condition. Inspect the car body for damage, tilting, oil leaks, or water leaks. 2. Engine and various fluids: Check the fastening condition of engine components and inspect all engine joints for oil or coolant leaks. Adjust and tighten belts as needed, and check the fastening of all hoses and wiring. Top up engine oil, coolant, and battery electrolyte. 3. Tires: Inspect tire wear and clean the trunk. Replace tires when they approach the wear indicators. Check for bulges, abnormal wear, aging cracks, or other damage on tires. 4. Cleaning and lubrication: Clean oil stains from the engine compartment hood, door hinges, and trunk hinge mechanisms, then lubricate them. Generally, antifreeze should be replaced every 2 years during maintenance, and the cooling system should be thoroughly flushed. Due to the hygroscopic nature of the braking system, brake fluid should be replaced every two years.