What items are replaced during a minor maintenance service?

[StMariana]

Items that need to be replaced during a minor maintenance service: 1. Engine oil: The replacement intervals for engine oil are categorized into three types based on time and mileage: Mineral oil (6 months or 5,000 km), Semi-synthetic oil (9 months or 7,500 km), and Full synthetic oil (1 year or 10,000 km). These intervals can be adjusted based on driving conditions. For city driving without traffic congestion, delaying the replacement by 1,000-2,000 km is acceptable, while in harsh environments, early oil inspection is recommended. 2. Oil filter: The oil filter does not require separate inspection; it should be replaced whenever the engine oil is changed. 3. Air filter and cabin air filter: The air filter can be replaced based on your vehicle's usage. Under normal conditions, replacing it before 20,000 km is sufficient. For drivers who smoke or operate in rural environments, replacement every 10,000 km is advised, while in dusty or sandy conditions, replacement every 5,000-8,000 km is recommended.

[MadisonLynn]

I've been driving for over five years, and I need to do a minor maintenance every six months or every 5,000 kilometers, mainly changing the engine oil and oil filter. Engine oil is like the blood of the engine, responsible for lubrication and heat dissipation. Over time, it thickens and gets mixed with metal shavings and dust. If not changed in time, it can damage the engine. The oil filter is used to filter out impurities, and it must be replaced together with the oil; otherwise, adding new oil would be a waste. Routine checks like tire pressure, brake pads, and lights are free. I also ask the mechanic to take a quick look at the cabin air filter and engine air filter. Sometimes, they just blow out the dust, but if it's too dirty, they recommend replacing it. If you drive a lot in big cities, it’s normal to replace the engine air filter every six months. If you buy the parts yourself, semi-synthetic oil plus an oil filter costs a little over 100 yuan, and another 50 yuan for labor gets the job done.

[Victoria]

Last time I watched the mechanic perform a minor service for me, he said it basically involves three things: engine oil, oil filter, and washer. You need to make sure he adds enough engine oil—too little causes excessive engine wear, while too much increases fuel consumption. The oil filter should be replaced with an OEM or reputable brand, as cheap ones may leak or fail to filter properly. Many people overlook that small washer, but it actually seals when the oil pan bolt is tightened. A new one should be used with every oil change, otherwise it may leak. Here’s a little tip: It’s best to supervise in the workshop during maintenance—first to avoid corner-cutting, and second to check the engine oil color to assess the engine’s condition. For example, if the oil is as black as ink, it indicates heavy carbon buildup, and you might need to clean the throttle valve next time.

[Alaina]

My brother runs a repair shop, and he says the core of a minor service boils down to two things—engine oil and the oil filter. Following the maintenance intervals specified in the car's manual is always the right approach, with Japanese cars typically requiring service every 5,000 kilometers, while German cars might go up to 10,000 kilometers. Changing the oil isn't just about pouring new oil in; the old oil must be completely drained, and the drain plug tightened properly. He recommends semi-synthetic oil as the most cost-effective choice for regular family cars, while full-synthetic is better suited for turbocharged models. Also, during maintenance, it's a good idea to check the air filter, and if you use the air conditioning frequently in the city, replacing the cabin air filter more often can prevent mold growth. He always emphasizes not to use counterfeit oil—there are many fake Shell and Mobil products out there—so it's best to buy from authorized shops and verify authenticity by scanning the QR code.

[McDelilah]

A friend who drives for ride-hailing told me he needs to do minor maintenance every month. The key things are just engine oil and oil filter, but the frequency is much higher than private cars. He uses the cheapest mineral oil, but changes it every 3,000 kilometers without fail, including the filter, costing less than 100 yuan. He said if you drive a lot, you need to change the air filter more often, otherwise there will be strange smells in the car, and passengers have complained several times. Another small detail: during maintenance, he asks the mechanic to tighten all the chassis screws, as daily bumps can easily loosen them. He suggests bringing your own materials to a quick repair shop to save half the cost, like buying an engine oil and filter combo on JD for around 100 yuan, with labor costs only 30-40 yuan.

[JosieLee]

After retirement, my neighbor Lao Wang enjoys road trips and takes meticulous care of his car. Besides the essential oil and filter changes, he always asks the mechanic to test the battery life and brake fluid moisture content. He insists on using engine oil with good low-temperature fluidity, especially for winter trips up north, where 5W grade outperforms 10W. Before long journeys, he never forgets to replace the cabin air filter and avoids rolling down windows during pollen season. He warns against using the wrong oil type—for instance, China-6 compliant vehicles require low-ash SP-grade oil to prevent clogging the particulate filter. Once, he forgot to replace a gasket, which caused an oil leak and a half-day delay on the road, so now he double-checks every item on the maintenance checklist.