Oil
It is very important in the operation of the engine
It mainly plays the role of lubrication, sealing and cushioning
But in the process of use,
The slightest carelessness can harm the engine.
Let's talk about it
Four common misconceptions about the use of motor oil!
1
Myth 1: The more expensive the oil, the better, and the more you add, the better
There are many different brands and different kinds of motor oils on the market, but the more expensive they are, the better. Different series, grades of use and viscosity grades should be selected in strict accordance with the provisions of the car manual.
Insufficient oil can lead to poor lubrication and wear of related parts. So some car owners will feel that the more oil is added, the better.
But in fact, too much oil will be channeled from the gap between the cylinder and the piston into the combustion chamber to form carbon deposits, resulting in insufficient vehicle power, jitter, ignition difficulties and other problems, and will also accelerate the pollution of the oil. The amount of oil should be controlled between the upper and lower tick lines of the oil gauge.
2
Myth two: blackening of the oil is deterioration
Nowadays, the oil is generally equipped with a cleaning dispersant, which can clean the carbon deposit attached to the piston and disperse it in the oil. The color of the oil is easy to turn black after a period of use, but the oil does not completely deteriorate at this time. Therefore, the deterioration of the oil cannot be judged by the color alone.
3
Myth three: the greater the viscosity of the oil, the better
During the operation of the engine, the oil needs to flow rapidly, replenish to the corresponding parts, and form an oil film for lubrication. The fluidity of the oil with excessive viscosity is poor, so it cannot reach the part to be lubricated in time and effectively, but accelerates the wear of the parts.
In the cold environment, winter oil with good low temperature fluidity (such as 0W-20 oil) should be selected to ensure that there can be a good lubrication effect in the low temperature environment.
4
Myth 4: Mixed use of different oils
Some car owners only pay attention to the amount of oil replenishment, and do not replace the old oil, and the new and old oils are mixed. During the use of old oils, due to pollution, oxidation and other reasons, the performance will be reduced. When mixed, the overall viscosity will be reduced, and it will not be able to produce a good lubrication effect on the parts, which will easily lead to increased wear of the parts.
Different brands, different labels of motor oil, diesel engine oil, gasoline engine oil can not be mixed, the performance between them is different, mixed use will make the performance change, may not be able to achieve a good lubrication effect, thereby accelerating engine wear.
Normal operation of the engine
The correct use of the oil is indispensable
Dear owners, remember to avoid these oil misdeeds at all times
Get the most out of your oil!
Source丨 Driving Guide