Most drivers understand that engines without lubricant will quickly become abrasive and damaged. However, few people know that pouring too much oil is equally dangerous.
In many cases, excess oil can reduce oil pressure, making the internal parts of the engine not fully lubricated.
Engine oil is usually contained in an oil pan located under the engine. When the car operates, the oil pump will pump oil from the oil pan, lubricate the parts, and then the oil flows back to continue the circulation cycle.
Problems will arise when the amount of oil exceeds the regulated level. At this time, the oil surface in the oil pan may come into contact with counterweights and rotating crankshafts at very high speeds. Continuous collisions cause oil to be blown into air bubbles.
Oil that bubbles will be difficult to pump, pump and circulate effectively. As a result, the oil pressure decreases, causing the details in the engine to fall into a state of lack of lubrication even though the actual amount of oil is too much.
One of the easiest signs to recognize is the oil pressure warning light turning on or the oil pressure gauge displaying a low level. In addition, the engine may emit continuous clicks from the cylinder area because these are the first parts to be affected when oil pressure decreases.
If you are driving and hear unusual noises accompanied by an oil pressure warning, the driver should stop the car in a safe place, turn off the engine and check the oil level. Continuing to operate in this condition may increase the risk of engine damage.
The most common cause of overfilling oil often occurs during oil changes. The mechanic may miscalculate the amount to be injected or pump out of the recommended amount of oil.
The case of self-replacing oil at home is also quite common, especially when the car owner pours the correct capacity as stated in the instructions but does not replace the oil filter, leading to the actual amount of oil exceeding the necessary level.
In addition to oil injection errors, abnormal oil levels may also stem from technical problems. For example, coolant water leaking through the engine cover or fuel leaking into the oil tank can cause oil levels to rise and be diluted.
At that time, the oil is usually thinner than normal, and white foam or a distinct gasoline smell may appear.
In some rare cases, oil rods being installed in the wrong position or damaged also cause inaccurate measurement results, leading to users adding oil excessively.
When oil exceeding the permissible limit is detected, the best solution is to discharge excess oil or replace it completely and then add it to the correct capacity as recommended by the manufacturer.
Intentionally maintaining oil levels higher than regulations to limit having to add oil between maintenance times is not a safe solution.
Therefore, drivers should check the oil level periodically and always maintain it within the allowed range. An accurate amount of oil not only helps the engine operate stably but also extends the life of the entire operating system.
