Oil is one of the waste products closely related to daily use. The use of oil is directly related to the life of the car. This series provides you with detailed knowledge of oil.
Oil function
(1) Lubrication
As long as the engine is in the operating state, the internal parts will produce friction, the faster the speed, the more intense the friction, such as the piston part, the temperature can reach more than 200 degrees Celsius or more, at this time if there is no oil, The temperature will be high enough to burn the entire engine. The first function of oil is to cover the internal metal surface of the engine with oil film to reduce the frictional resistance between metals.
( 2) Heat dissipation
The heat of the automotive engine itself, in addition to the cooling system. Oil is also an important role, because the engine oil will flow through all parts of the engine, can take away heat generated by friction parts, and the piston part farther away from the cooling system, can also get some cooling effect through the oil.
(3) Cleansing effect
The residue of carbon and combustion produced by the engine's long-term operation will adhere to all parts of the engine. If it is not properly handled, it will affect the engine's function, especially if these things accumulate in the piston ring and in the intake and exhaust valves. It will produce carbon deposits or sticky substances that will cause knocking, unsmooth movements, and increased fuel consumption. These phenomena are the enemy of the engine. The oil itself has a clean dispersion and does not allow these carbon and debris to accumulate inside the engine. Let them form small particles that are suspended in the oil.
(4) Sealing function
Although there is a piston ring between the piston and the cylinder wall to provide the sealing effect, the metal surface is not very smooth, so the sealing degree will not be very good. If the sealing effect is not good, the engine power must be reduced, so the oil can be in the metal. Produce a thin film between them to provide a good engine seal and improve engine operating efficiency.
(5) Anti-corrosion, anti-rust and anti-freeze effects
After a certain period of time, the car will naturally generate corrosive oxides. The strong acids in these corrosive substances can easily cause erosion in the internal parts of the engine. The moisture generated by the combustion is large. Some will be carried out with exhaust emissions, but there will still be a little residual moisture, which will also damage the engine. Therefore, additives in engine oil have functions of anti-corrosion, anti-rust and anti-freezing to protect the engine from damage.
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