
You cannot change the engine oil without replacing the filter. The reason is: The performance of the oil filter directly affects the lubrication effect of the oil on the engine. The steps for changing the engine oil are: 1. Use a jack to lift the vehicle, locate the drain plug, and loosen it to drain the oil; 2. After unscrewing the oil filter, place a container underneath; 3. Replace with a new oil filter and add new oil. The precautions for changing the engine oil are: 1. Choose the right oil for your vehicle; 2. Change the oil as much as possible when the engine is warm to ensure all the old oil is drained; 3. The oil filter must be replaced when changing the oil; 4. The amount of oil added should be appropriate, as indicated by the dipstick; 5. After adding the oil, start the engine and check for any leaks in the components.

It's really not recommended to change the oil without replacing the filter. After decades of driving, I've seen too many lessons learned. The filter traps various metal shavings and impurities. If not replaced, the new oil gets contaminated quickly, accelerating wear on internal engine components and shortening their lifespan. Over time, clogged oil passages may cause abnormal noises and power loss. In severe cases, it could lead to major engine repairs costing thousands – definitely not worth it. I always replace the filter when changing oil; it's inexpensive, around 100 yuan, and ensures engine health for worry-free long-distance driving. Regular isn't just about saving money – it's mainly to avoid unexpected breakdowns that could disrupt your trip. Filter replacement is actually simple; just consult your manual, and follow the standard workshop interval of every 5,000 kilometers.

From a cost-saving perspective, skipping the oil filter change during an oil change might save you a few dozen bucks, but in the long run, it's not worth it. The oil filter is essentially a filter—when it gets dirty and you delay replacing it, it obstructs oil flow, reducing engine efficiency and naturally increasing fuel consumption. Over a year, the extra fuel burned could cost you hundreds, right? On the other hand, replacing the filter once and for all extends the oil's lifespan, and the savings on fuel and repair costs more than cover the expense. I always remind my friends not to be penny-wise and pound-foolish—the engine is a major investment, and saving a little now could lead to costly repairs later. Follow the manual and change both the oil and filter together—that's the smart way to go.

The function of the oil filter is to remove contaminants from the engine oil. If it's not replaced during an oil change, the new oil will become contaminated again. This can lead to insufficient engine lubrication, increased component friction, and over time may result in reduced power output or even engine damage. I always replace the oil filter with every oil change to maintain a complete system and ensure smooth engine operation.

Once, I tried to save time by changing the oil but skipped replacing the oil filter. Less than a month later, my car started jerking and making strange noises. The repair shop found the filter was clogged, blocking the oil flow and allowing contaminants to mix with the new oil. I had to replace the whole set again, costing over 200 yuan more and wasting a whole day. Since then, I've learned my lesson and never skip this step again. Remember to regularly check the filter's condition and replace it for peace of mind.

Changing the oil along with the filter is the golden rule and cannot be skipped. An old filter accumulates too much debris and becomes ineffective, causing the new oil to directly contact contaminants, which accelerates aging. I often refer to the manufacturer's guidelines, and replacing both simultaneously maximizes engine protection and efficiency, preventing additional failures. Don't find it troublesome—this simple step keeps your car long-lasting and reliable.


