
Sedans should undergo maintenance approximately every 5,000 to 10,000 kilometers. Below are the details regarding sedan maintenance: Maintenance includes: Replacing engine oil and oil filter; checking the air filter; inspecting the fuel filter; replacing transmission fluid; checking tires; replacing spark plugs; topping up antifreeze ; replenishing power steering fluid. Automobile Maintenance: Refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of the automobile, also known as automobile upkeep. Its purpose is to maintain a clean vehicle appearance, ensure normal technical conditions, eliminate potential hazards, prevent faults, slow down the deterioration process, and extend the service life.

I've been driving a sedan for quite some years. I remember one time I forgot to do a major maintenance service, and ended up driving 35,000 kilometers without it. Then my car developed problems—the engine noise became alarmingly loud, and the repair cost me over 2,000 yuan. Since then, I've strictly followed the owner's manual. Generally, it's advisable to do a major maintenance service every 20,000 to 30,000 kilometers. My car is a Toyota Corolla, and the manual specifies every 24,000 kilometers. The maintenance includes changing the engine oil and filters, checking the brake pads and tire wear to prevent minor issues from turning into major repairs. Additionally, driving conditions are crucial. If you frequently drive on highways or in congested urban traffic, it's recommended to go for maintenance every 20,000 kilometers. I always choose the dealership for maintenance—they thoroughly inspect the suspension system and electrical components to ensure the car runs safely. After adopting this habit, my car has run 150,000 kilometers and still feels like new, saving both hassle and money.

As a family car user, I prioritize safety above all, so I never take major maintenance lightly. I personally follow a schedule of performing a major service every 25,000 kilometers, as this is when they thoroughly inspect the brakes, tires, and steering system—all of which are directly related to driving safety. My car is a Ford Focus, and the manual recommends a major service every 30,000 kilometers, but I believe every 25,000 kilometers is safer, especially during the rainy season when roads are slippery. Any issue with the brakes could lead to an accident. During maintenance, I also replace the air filter and spark plugs, which makes the car run smoother. If you drive less, you can do it every two years—don’t just focus on mileage. Last time, I delayed a bit and went in at 28,000 kilometers, only to find the steering was a bit stiff. I got it fixed immediately, and it gave me quite a scare. In short, regular maintenance is like extending your car’s life—don’t take risks.

As a pragmatic car owner, my goal with a sedan is to save money and hassle. The smartest approach is to schedule a major service every 20,000 to 30,000 kilometers. Based on my experience, visiting a professional shop every 25,000 kilometers for an oil and filter change costs just a few hundred bucks, but it prevents major issues like engine overheating or oil leaks, which could set you back thousands in repairs. The service also includes checking the transmission and cooling systems to avoid breakdowns. If you drive frequently, go earlier based on lower mileage; if you drive less, every two years is fine. Using high-quality oil can buy you a bit more time, but don’t exceed 30,000 kilometers—like when I pushed it to 32,000 km once and ended up with a dead battery on the road, needing a tow truck. Talk about a double loss. Sticking to regular maintenance actually extends your car’s lifespan—now that’s a smart deal.

I commute daily in my Nissan Sylphy sedan. The manual recommends a major service every 30,000 km, but I go every 25,000 km due to heavy traffic congestion during my commute, which causes faster wear. The service includes replacing the air filter and spark plugs, checking the coolant and belts, and takes about half a day – easy to schedule on weekends. Keeping the car well-maintained improves fuel efficiency, saving money and hassle. If you drive in dirtier conditions, like near construction sites, consider servicing every 20,000 km. Last time I delayed until 28,000 km, and not only did the AC stop cooling, but it also affected the engine. Developing a regular maintenance habit is key.


