What are the effects of filling engine oil to the maximum mark on the dipstick?
2 Answers
Filling engine oil to the maximum mark on the dipstick will not cause any issues. More knowledge about engine oil is as follows: 1. When nearing full capacity, you should wait about one minute after stopping the oil addition before measuring. This allows the newly added oil to flow into the oil pan. If you measure immediately after stopping, the oil hasn't fully reached the oil pan, resulting in a lower measurement than the actual level. This is a common reason why many people overfill when changing oil themselves. 2. After running the engine, wait about five minutes to allow the oil to fully return to the oil pan before measuring. When the engine is cold, lubrication areas are without oil, and almost all the oil is in the oil pan, leading to a lower measurement. This is because after starting the engine, some oil adheres to various lubrication points in the engine, reducing the actual oil level in the oil pan.
Last time I had my car serviced, I also encountered the issue of overfilled engine oil. The mechanic explained to me that filling the oil up to the maximum mark on the dipstick can actually cause significant problems. When the engine is running, the crankshaft can churn the oil and create bubbles. These bubbles drawn up by the oil pump can impair lubrication. Additionally, the internal pressure of the engine may increase, potentially leading to oil seal leaks. At the time, I felt the car lacked power, and the engine sound was muffled. It wasn't until we used a syringe to remove the excess oil that everything returned to normal. So, I'd like to remind everyone: more oil isn't necessarily better. The ideal level is around two-thirds between the minimum and maximum marks on the dipstick. This ensures proper lubrication without creating unnecessary strain.
