Which parts of the car need lubricating oil and which parts of the car should be lubricated

1. Spindle and bearing.

There is a rapid relative slip between the piston and the cylinder, between the spindle and the pad, and to prevent the parts from wearing out too quickly, an oil film needs to be created between the two sliding surfaces. An oil film of sufficient thickness separates the surface of the relatively sliding part to reduce wear.

2. an engine.

The oil has a low specific calorific value and is not inherently coolant inside the engine. However, due to the heat generated by fuel combustion in the engine, when the engine is working, the oil can bring the heat back to the oil tank and then dissipate it into the air to help the water tank cool the engine, and the real cooling effect is the water (or antifreeze liquid) outside the engine case.

3. a piston ring.

The oil creates a seal between the piston ring and the piston to reduce gas leakage and prevent outside contaminants from entering.

Engine oil: mainly used in automobile engines, automobile rear axles, manual transmissions, etc.;

Brake fluid: used in the braking system of automobiles;

Automatic transmission fluid: used in automobile automatic transmission device;

Grease: used for lubrication and sealing of automobile bearings;

Automobile lubricant is a liquid lubricant used in various types of machinery to reduce friction and protect machinery and processed parts, mainly playing the functions of lubrication, cooling, rust prevention, cleaning, sealing and buffering.

The concept of automotive lubricant additives is to add one or several compounds to a lubricant in order to obtain some new properties of the lubricant or improve some of the properties already in the lubricant. Additives are mainly divided into antioxidants, anti-wear agents, friction modifiers (also known as oily agents), extreme pressure additives, detergents, dispersants, foam inhibitors, anti-corrosion and rust inhibitors, flow point improvers, viscosity index enhancers and other types. The additives sold in the market are generally a combination of the above single additives, the difference is that the composition of a single additive is different and the proportion of several single additives within the compound additive is different.

Well, how to say it, lubricating oil covers too wide ......Engine (engine oil), transmission (gear oil), ground (butter), automatic transmission (ATF oil) can all be called lubricating oils......

In addition to engine oil, gearbox oil, and brake oil, there is also a very important lubricating oil in the car, that is, the refrigeration oil of the air conditioning system. Refrigeration oil works at -20-70 degrees, the working environment is harsh, and it is easy to age, so it needs to be replaced regularly.

1.The parts that need to be lubricated are: sunroof, door hinge, window lifting system, lock linkage mechanism, car seat slide, steering ball joint, front arm ball joint, transmission shaft, mechanical axle pin, steel plate axle pin, etc.

2.Automotive lubricant additives are one or several compounds added to lubricating oil to obtain certain new properties of a lubricant or to improve some existing properties of a lubricant.

3.Additives mainly include antioxidants, anti-wear agents, friction modifiers, extreme pressure additives, detergents, dispersants, foam inhibitors, corrosion inhibitors, flow point improvers, viscosity index improvers, etc. They have four major functions: cooling, lubrication, cleaning and sealing, which play a vital role in ensuring the normal operation of the engine.

The uses of automobile lubricating oil are: 1. Lubrication and wear. In order to prevent excessive wear of the parts, an oil film needs to be formed between the two folding surfaces.

The engine oil can achieve the purpose of isolating the surface of the parts with a sufficient thickness of oil film relative to the folding, and reducing wear. 2. Cool down. The oil can bring heat back to the tank and release it into the air to help the tank cool the engine.

3. Clean it well. Good engine oil can bring carbide, sludge and worn metal particles of engine parts back to the oil tank in circulation, and wash away the dirt generated by the working surface of the parts with the flow of lubricating oil. 4. Sealed and leak-proof.

The oil forms a seal between the piston ring and piston, which reduces air leakage and prevents outside contaminants from entering.

Engine oil has four main functions: cooling, lubricating, cleaning, and sealing. It plays an important role in ensuring that the engine is working properly.

With the increase of engine working time, the engine oil is affected by the oxidation of local fibers to high temperatures, the wear of mechanical parts of the machine, and the corrosion of fuel vapor. Automobile lubricating oil has the following three functions: 1. Engine lubricating oil, that is, oil; 2. It can play the role of lubrication and wear reduction, auxiliary cooling and cooling, sealing and leakage, anti-rust and anti-corrosion, slow panicle side flushing, etc.; 3. Cleaning and cleaning:

Good engine oil brings carbide, sludge and worn metal particles from engine parts back to the oil tank through circulation, and washes away the dirt generated by the working surface of the parts through the flow of lubricating oil.

If it is a new Japanese car, you can choose 2030, if it is a German car, you can choose 40, and if you want to buy a domestic car, you can choose 3040, and you can choose a 40 with a larger change for old cars.

Each car is an instruction manual, which is written with what type of lubricating oil is suitable for your own vehicle, and you can choose the lubricating oil that suits you according to the requirements.