If the oil reaches below F on the oil dipstick, it is not considered insufficient. Only if it is lower than the lowest line, it is considered insufficient and needs to be added. F on the oil dipstick is the highest limit and L is the lowest limit. The engine oil is normal only if it is between the highest and lowest limits of the dipstick.
Excessive engine oil will escape from the gap between the cylinder and the piston into the combustion chamber and form carbon deposits. These carbon deposits will increase the engine's compression ratio and increase the probability of knocking. At the same time, too much engine oil will increase the stirring resistance of the crankshaft connecting rod, causing increased fuel consumption. It will also increase the internal pressure of the engine and cause oil leakage in the engine seals. There are two scales on the oil dipstick, and the oil level is best between the highest and lowest scales. Not too much, not too little, just the right amount.
Extended information:
The most correct way to check the engine oil dipstick is in a stationary state:
(1) Be sure to check the engine oil dipstick after one night or half an hour of parking. Check the correct position of the oil level. When looking at the oil dipstick, do not look at one side, but both front and back. The smaller side shall prevail. If you are not sure, wipe it clean and look again. Looking at only one side may sometimes cause the oil adhesion on the wall of the pipe to be poked. It will create an illusion on the ruler.
(2) Under normal circumstances, do not relax and check the oil dipstick once or twice a day.
(3) Under abnormal circumstances, including reduced engine sealing performance, increased oil loss, or internal and external leakage and the fault has not been dealt with, frequent inspections are required, and if there is any missing oil, additional oil must be added. , the oil in the engine is like the blood of the human body and cannot be careless at all.
(4) The oil dipstick should be checked after a failure occurs, such as after internal damage, etc. The oil dipstick should be checked in time.
(5) When looking at the oil dipstick, you should not only look at the quantity but also pay attention to the qualitative changes.
People's Daily Online - 6 common misunderstandings about engine oil. Come and see how many of them you have fallen into