Can maintenance be done outside of a 4S shop?

[Ellie]

Maintenance can be performed outside of a 4S shop, but the engine oil, parts, etc., used in 4S shops are officially recognized and come with a warranty period, making them more worry-free and safe. Precautions for maintenance outside of a 4S shop: It is best to observe the entire maintenance process to avoid the repair shop using substandard engine oil or unqualified parts. Typically, the air filter, fuel filter, and oil filter are collectively referred to as the "three filters." Many vehicles require maintenance every 5,000 kilometers or so, and some repair shops recommend replacing all three filters during each maintenance session to increase profits. Some repair shops may even cut corners and replace only two at most. In reality, most car manufacturers recommend replacing them every 5,000 kilometers, but this also depends on the vehicle's usage and maintenance conditions. If the car frequently drives on rural dirt roads or travels long distances in hilly areas, the filters should be replaced every 2,000 kilometers. If the car is well-maintained and primarily driven in urban areas, they can be replaced every 10,000 to 20,000 kilometers. Generally, the three filters should be replaced every 15,000 to 20,000 kilometers, meaning replacing them every other maintenance session is sufficient. If the car has difficulty starting, the throttle may be dirty, and the repair shop may recommend a "three-wash" service.