
Car is determined based on different situations: 1. For frequent driving, focus on mileage; 2. For infrequent driving, focus on time. Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the vehicle. Its purpose is to keep the car clean, maintain normal technical conditions, eliminate hidden dangers to prevent failures, slow down the deterioration process of components, and extend the service life. Precautions for car maintenance: 1. Avoid running the engine for long periods in an unventilated garage; 2. Avoid sucking oil pipes with your mouth; 3. Avoid getting carburetor cleaner on the car body.

I've been driving for over a decade, and when it comes to , I always go by whichever comes first. For example, my current car requires maintenance every six months or 5,000 kilometers. Since I mainly use it to pick up and drop off my kids, I only drive about 3,000 kilometers in six months, but I still go for maintenance when the time is up. Engine oil can oxidize over time, and brake fluid absorbs moisture and deteriorates—don't skimp on that cost. But if you're driving for ride-hailing services and hit 5,000 kilometers in just a month, you should get maintenance even if it's only been two months. Also, different components have different requirements. Things like cabin air filters can be replaced yourself, but for engine-related parts, always follow the manual. Regularly checking your car's condition is what really matters.

My experience is don't rigidly stick to mileage or time intervals. Last time when I was on a three-month business trip without driving, I went for immediately after returning, even though I'd only driven 200 kilometers. Long-term parking is particularly harmful to cars - oil sedimentation, battery drain, and tire deformation are all common issues. Conversely, for daily highway commuter cars, I recommend maintenance at 80% of the manual's suggested mileage - for example, go at 8,000 km if 10,000 km is recommended. Here's a money-saving tip: using full synthetic oil can extend the interval, but never exceed one year. Regularly check fluid levels yourself and top up promptly if low.

Last week during , the technician showed me a car that hadn't been serviced for three years - the engine was completely clogged with sludge. I'd recommend lazy owners to simply follow time-based maintenance and set calendar reminders on their phones. For example, I set a reminder every 6 months and take the opportunity for seasonal AC checks. If you frequently take long trips, focus more on mileage - check the odometer during rest stops at service areas. Also, requirements vary significantly between brands - German cars generally require service every 7,500 km or annually, while Japanese models typically need it every 5,000 km or six months. My approach is to follow the dealership's requirements for the first service, then switch to the manual's minimum standards after warranty expires - it's both cost-effective and protects the vehicle.


