Engine oil is responsible for the lubrication, cleaning, sealing and cooling of the engine. If the engine does not participate in the operation, the engine will be scrapped after a period of operation, and the lack of oil in the engine will lead to poor lubrication of internal parts of the engine.
The lack of oil in the engine will lead to low oil pressure, increase the friction coefficient of internal parts of the engine, the engine will shake during operation, the car will obviously feel insufficient acceleration during driving, and even cause the engine to burn tiles in serious cases.
Too low oil pressure may also lead to abnormal variable timing solenoid valve of the engine, which can not accurately control the intake or exhaust of the engine, and at the same time, it will also lead to an increase in fuel consumption and a decrease in power.
Function of automobile oil
1, lubrication and wear reduction
When the car starts, there is rapid relative friction between the piston and the cylinder, between the spindle and the bearing bush, and between the timing gears. An important function of engine oil is to form an oil film between two friction surfaces through the friction of parts, which will separate the surfaces of two friction parts, thus achieving the purpose of reducing wear.
2. Cleaning and washing
Another function of engine oil is that it can bring the carbon deposit, sludge, metal wear particles and other dirty things on engine parts back to the oil pan through circulating flow, so as to achieve the cleaning effect.
3. Sealing and leakage prevention
Oil can also form an oil film between parts with relative movement, improve its sealing performance, and help prevent air leakage or oil leakage.
4, rust and corrosion protection
Oil will form an oil film on the surface of the part through the movement of the part, and this oil film can be adsorbed on the surface of the part, which plays a role in waterproof and air prevention. Avoid contact with the surface of parts and lead to corrosion and rust of parts.
5. Cool down
Engine oil can bring part of the heat in the engine back to the oil tank and then radiate it into the air, which helps the coolant to cool the engine.