Does a car need an oil change once a year?

[LeNatalie]

An annual oil change is necessary for cars, and the steps for replacement are as follows: 1. Lift the car, remove the undercover, and place a container of about 10 liters under the oil drain plug; 2. Loosen the oil drain plug, use an air gun to blow for two minutes at the oil filler port, tighten the drain plug after draining, and wipe it with a tissue to check for oil leaks; 3. Reinstall the undercover and lower the car, then use a funnel to add oil to the standard level at the oil filler port. Precautions for oil change: 1. Perform the change when the engine is warm to ensure the old oil is thoroughly drained; 2. Add oil and ensure the amount is appropriate; 3. After adding oil, start the engine and check all components for any oil leaks.

[StJasper]

I've been driving for over twenty years, so I have some experience in this. Generally speaking, whether you need to change your car's oil once a year depends on how you use it. If you drive a lot, such as frequently on highways or in city traffic, I recommend changing it based on mileage—preferably every 5,000 to 8,000 kilometers, which might mean changing it more than once a year. But if you don't drive much, like only on weekends, and cover just a few thousand kilometers a year, then changing it once a year is fine. The key is the quality of the oil. I now use full synthetic oil, which lasts much longer than conventional oil—it can go up to over 10,000 kilometers before needing a change, which is really convenient. Also, remember to check the dipstick regularly to monitor the oil's color and viscosity. If it's black or has thinned out, it's time for a change. Don’t ignore this—old oil can cause faster engine wear, leading to expensive repairs. My lesson: last time I delayed by three months, the engine noise got much louder, and I ended up spending hundreds on repairs.

[RyanLee]

I pay great attention to car maintenance and never neglect oil changes. Changing it once a year is actually a conservative approach, but personally, I believe it depends on the specific situation. For newer vehicles with low mileage using synthetic oil, changing once a year is acceptable. However, for older cars or those frequently driven on short trips, where oil tends to absorb moisture and impurities, it's better to change more frequently. I make it a habit to check every three months to ensure there are no leaks or sediment buildup. I also keep an eye on engine noise and fuel consumption, taking early action if anything seems off. This way, I protect my car without wasting money.

[StJoanna]

From a cost-saving perspective, engine oil doesn't necessarily need to be changed annually. I drive very little, only about 4,000 kilometers a year. After switching to high-quality synthetic oil, I can stretch the interval to 18 months between changes, saving significant maintenance costs. However, the key is to monitor actual conditions, such as checking the oil's viscosity and color. If you drive aggressively or in dusty environments, don't delay changes too long - engine repairs would cost far more. I recommend using simple oil test strips to check the condition yourself before deciding; it's both economical and reliable.