The engine is the heart of the car, and the oil is the blood of the engine. Oil lubricates, cools, cleans, and protects the engine and can cause serious damage to the engine if it is insufficient. Let's take a look at what is the performance of insufficient engine oil.
First, the oil pressure drops.
A drop in oil pressure is one of the most obvious signs of an engine oil deficit. As the amount of oil decreases, the oil pressure decreases gradually. If the oil pressure is too low, it will lead to poor lubrication between the friction pairs of the engine, resulting in a large amount of frictional resistance, thereby accelerating the wear of the engine, and even leading to serious failures such as engine cylinder pulling and shaft holding in serious cases. Therefore, check the oil pressure frequently to ensure that it remains within the normal range.
Second, the engine overheated.
Engine overheating is also one of the signs of insufficient oil. Due to the lack of adequate lubrication, the heat generated by friction cannot be dissipated in time when the engine is running, which can lead to high engine temperatures. The high temperature for a long time will aggravate the wear and tear of various parts of the engine, and even cause failures such as ablation and stagnation. Therefore, when the engine is found to be overheating, it should be checked in time whether the oil supply is sufficient.
3. Abnormal engine noise.
When the engine oil is insufficient, the lubrication between the friction pairs is poor, and abnormal friction sounds are generated. This abnormal sound usually appears as a high-pitched "hiss" or "rattle" sound, sometimes accompanied by a metallic grinding sound. When this abnormal noise occurs, you should check whether the oil quantity is sufficient in time and replace the qualified engine oil.
Fourth, emissions have increased.
When the engine oil is insufficient, the lubrication between the friction pairs is poor, which will lead to insufficient fuel combustion, which will increase the emission of harmful gases. At the same time, due to increased engine wear, the gap between the components becomes larger, which leads to air leakage and further increases emissions. Therefore, if an increase in vehicle exhaust emissions is found, it may be one of the signs of insufficient engine oil.
Fifth, fuel consumption increases.
When the engine oil is insufficient, the poor lubrication between the friction pairs will increase the frictional resistance, so that the engine needs to consume more fuel to maintain normal operation. At the same time, due to increased engine wear, the gap between the components becomes larger, which leads to insufficient fuel combustion, further increasing fuel consumption. Therefore, if you notice an increase in your car's fuel consumption, it may be one of the signs of insufficient engine oil.
In summary, the manifestations of engine oil deficiency are varied, including oil pressure drops, engine overheating, squeak and squeak, increased emissions, and increased fuel consumption. To protect the engine, the owner should regularly check the oil level to ensure that it is kept within the normal range. If you find that the engine oil is insufficient or the above symptoms appear, you should change the qualified engine oil in time. At the same time, car owners should also pay attention to the selection of the right type of engine oil to avoid engine failure caused by the use of inferior or non-compliant engine oil.