What should be paid attention to when changing engine oil for a sedan?

[StAugust]

Here are the precautions for changing engine oil: 1. Preheat the engine before draining the oil: Before draining the old oil, the engine should reach operating temperature. The oil will be thinner and flow more easily, carrying away impurities and helping to drain the oil completely. Remember not to drain the oil when the engine is cold. 2. Replace the oil filter simultaneously: When changing the engine oil, the oil filter should also be replaced. The old oil filter may be clogged with impurities, which can slow down oil flow and reduce engine lubrication. Residual old oil in the filter can also degrade the quality of the new oil. 3. Add the correct amount of oil and monitor the dipstick: When adding new oil, the quantity is crucial. Avoid overfilling, as it can cause oil leaks from seals. The oil level should be slightly above the midpoint between the minimum and maximum marks on the dipstick. 4. Check for oil leaks: After changing the engine oil and starting the car, do not rush to accelerate. Check for any oil leaks around the drain plug and oil filter areas.