
Replacing the three filters and engine oil constitutes car maintenance. Below is the relevant introduction: 1. Introduction to Car Maintenance: Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. Modern car maintenance mainly includes the maintenance scope of the engine system (engine), transmission system, air conditioning system, cooling system, fuel system, power steering system, etc. 2. Engine Oil Replacement Time: Generally speaking, the replacement cycle of engine oil is 5,000 kilometers. The specific replacement cycle and amount should be determined based on the relevant information of the vehicle model. 3. Classification of the Three Filters: The three filters are the engine oil filter, air filter, and cabin air filter.

Honestly, car maintenance is just like our regular health check-ups—it needs to be done based on mileage or time. I usually keep a few key points in mind: change the engine oil and oil filter every 5,000 to 10,000 kilometers, check the air filter every 20,000 kilometers, and replace the brake fluid every 2 years or 40,000 kilometers. Tires should be inspected for wear and pressure during every maintenance session, and don’t forget to inflate the spare tire. The most commonly overlooked items are fluids—windshield washer fluid, coolant, power steering fluid—just top them up when they’re low. Follow the manual for spark plugs and transmission fluid, typically addressed every 40,000 to 60,000 kilometers. Maintenance really can’t be skipped—last year, my friend didn’t notice his brake pads were completely worn out and almost got into a serious accident.

In my opinion, the most practical car maintenance is regular oil and filter changes. This is money well spent. I always make an appointment before each service to avoid wasting time in queues. The cabin air filter is especially important, particularly in northern areas with heavy smog - it needs to be taken out and dusted every two months. With the hot weather now, last week I added refrigerant to my car myself and discovered the coolant was low too. During maintenance, remember to ask the mechanic to check chassis bolts - once my car made strange noises over speed bumps because suspension bolts were loose. Oh, and when washing your car, rinse the undercarriage thoroughly, especially after winter when de-icing salt has been used, to prevent rust.

Maintenance focuses on three key items: engine oil, tires, and the battery. I prefer changing to full synthetic oil every 8,000 kilometers, which is more cost-effective than mineral oil as it lasts 2,000 kilometers longer. I check tire pressure every quarter and always take advantage of free air refills at gas stations. The battery is most vulnerable in winter, so I test its voltage before the cold season—if it's low on charge, the car won't start. DIY maintenance is simple: always keep windshield washer fluid and antifreeze on hand, and replace the wiper blades when they start squeaking. Once, I forgot to change the air filter, and the engine started shaking. Always keep the maintenance manual—requirements vary significantly between different car models.


