What does lubricating oil a3b4 mean, what does engine oil indicate A3 B4 means

Engine oil A3B4 is a relatively advanced main line lubricating oil, which is a catalytic gasoline and light duty diesel engine oil.

A3B4 engine oil represents different grades of engine oil, A refers to the engine oil used by vehicles with gasoline engines, B represents engine oil used by diesel engines, and the numbers after the letters represent different oil grades, the higher the number, the higher the grade of oil, the better the quality. If it is A3B4 oil, it means that both types of engines can be used.

CastrolIt is a motor oil brand, and A3B4 is the model.

Mineral oil base oil.

Refined from **. The main production processes of lubricating oil base oil are: atmospheric and vacuum distillation, solvent deasphalting, solvent refining, solvent dewaxing, clay or hydrogenation supplemental refining.

In 1995, China's current lubricant base oil standards were revised, mainly revising the classification method, and adding two types of special base oil standards: low condensation and deep refining. The most important thing in the production of mineral lubricants is to use the best **.

Traditional production process:

1) Solvent refining. Solvent refining is an important step in the production process of lubricating oil, and its main role is to remove fused cyclic aromatic hydrocarbons from oil products.

Gum, asphaltene, etc., improve the viscosity and temperature properties, oxidation stability, carbon residue value, color and other properties of lubricating oil. The process is relatively mature, and the commonly used solvent is furfural.

Phenol and N-methylpyrrolidone (NMP).

2) Solvent dewaxing. The solvent dewaxing process mainly includes four parts: crystallization, filtration, solvent** and freezing, the purpose of which is to remove paraffin in the oil and reduce the pour point of the lubricating oil base oil. This process has technical advantages in the processing of lighter raw materials, with high yield of dewaxed oil and high viscosity index.

In order to reduce energy consumption, save operating costs and reduce investment, domestic and foreign lubricating oil base oil manufacturers have adopted solvent dewaxing and wax deoiling combined processes, which have been greatly improved in recent years, mainly in terms of energy saving, improving oil and wax yield and other technologies.

The above content reference: Encyclopedia - lubricating oil.

It is the lubricating oil standard formulated by ACE A (European Automobile Manufacturers Association), A stands for gasoline engine oil, B stands for diesel engine oil, A3 B4 means that this engine oil can be used by gasoline and diesel, A3 B4 mainly means: the oil is stable, the grade is durable, the high temperature and high shear viscosity is greater than that, designed for high-performance gasoline and direct injection diesel engines, and is also suitable for the applications described in A3 B3. ACEA sets standards higher than the API "SN" level, hopefully.

The role of engine additives is limited, it is not cheap, maintenance is not cost-effective, and it is better to improve noise and power than to directly change the car to a higher grade and better quality fully synthetic engine oil. The car I picked up in 10 years was changed to GT Magic Red engine oil after the warranty. The main thing is that the engine oil has the addition of liquid molybdenum, the anti-wear protection ability is very good, the mute effect is very good, the engine noise came down after a few days of running, and the whole car is also more stable than before, and the driving experience is much better.

1. Gasoline engine lubricants are divided into five quality grades: A1, A2, A3, A4, which refers to higher-grade products, equivalent to API--SL level (i.e., semi-synthetic and fully synthetic lubricants).

2. Light diesel engine lubricants are divided into five quality grades: B1, B2, B3, B4, which refers to the highest grade of products and exceeds all API oil standards.

Quality grade.

The winter oil grades of SAE lubricating oil viscosity classification are: 0W, 5W, 10W, 15W, 20W, 25W, the symbol W represents winter, the smaller the number before W, the smaller the low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature;

The higher the number, the greater the viscosity, and the higher the applicable maximum temperature;

The winter and summer general oil grades of SAE lubricating oil viscosity classification are: 5W W W-50, the smaller the number representing the winter part (the lower the applicable minimum temperature), the larger the number representing the summer part (the larger the applicable maximum temperature), and the larger the applicable temperature range.

Engine oil, that is, engine lubricant, English name: engine oil. The density is about to lubricate and reduce friction, assist cooling and cooling, seal leakage, rust and corrosion, shock absorption and cushioning for the engine.

It is known as the "blood" of automobiles. Engine oil is made up of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil, and additives can make up for and improve the shortcomings of base oil performance, give some new properties, and are an important part of lubricating oil.

A3 B4 refers to the quality grade of the motor oil, which conforms to the A3 B4 quality grade in the European Automobile Manufacturers' Association ACEA classification.

It is the specification of the European Automobile Manufacturers Association, which is a group of two words, aiming at the quality of engine oil for gasoline and diesel vehicles. Starting with "A" indicates the specification for gasoline engine oil, which is currently divided into four grades: A1, A2, A3 and A5; The beginning of "B" indicates the specification for light duty diesel engine oil, which is currently divided into B1, B2, and B3; , B4 and B5;

A3B4 is the inspection and certification standard for automotive lubricants in the European automobile manufacturing industryIn terms of technical requirements, it is higher than the well-known American API standard.

With the latest ACEA 2002 standard, it seems that automakers are now placing more and more emphasis on the low viscosity of motor oil to reduce fuel consumption, and at the same time placing great emphasis on the ability of oil viscosity to "stay-in-grand" (the viscosity remains within its original viscosity level in actual use) to ensure lubricating performance.

Benefits of motor oil:

1. Lubricity. The ability of engine oil to reduce friction, slow down wear and prevent metal sintering under various conditions is called engine lubricity. The viscosity of engine oil is an important indicator of lubricity.

2. Low temperature operability. From the engine oil aspect, the engine oil is easy to start and reliable to supply oil at low temperatures, which is called the low-temperature operability of engine oil.

It's the European standard for motor oil! Generally, A stands for gasoline engines and B stands for diesel engines. At present, the best car engine oil on the market is GT engine oil, I bought it directly on the official website of GT engine oil and went to the auto repair shop for maintenance and replacement, the performance is much better than the Mobil used before, and it is also much cheaper than the maintenance in the 4S shop.

The oil label has nothing to do with the power, the main thing is to look at the quality of the oil. The 0w engine oil is basically a fully synthetic engine oil. In this case, you can change to a higher-end 0w grade fully synthetic motor oil.

I have been changing GT Magic Red 0W40, Class IV PAO base oil, high quality, good cleanliness, and the engine is very quiet after changing. In addition, the power has always been relatively stable for 10,000 kilometers, and if it is other fully synthetic engine oil, it will be powerless for 5,000 kilometers.

There are differences in the viscosity of different engine oils in the car series, but it has nothing to do with the quality of the car itself, you will send the first insurance after buying the car, the first insurance is the original engine oil of the 4S shop, which is generally 5W marking, the quality is not very good, the power is insufficient to run to more than 3000 kilometers, you can buy the oil yourself after use, I Langyi uses GT Magic Red 0W40 engine oil, PAO oil power foot running is a good driving experience, and you can change it once for 15,000 kilometers.

It represents the dual-purpose engine oil of gasoline engine and Hui Rollqing light duty diesel engine. 1. In the engine oil A3B4, A means that the gasoline engine is in trouble, and the engine oil is A1, A3, A5, etc.; 2. B means that the light-duty diesel engine has B1, B3, B4, B5, etc., and the larger the number in the back, the higher the grade; 3. A3B4 engine oil implements the testing and verification requirements of European automobile companies in automobile lubricants. A3B4 is the inspection and verification requirement for automotive lubricants in the European machinery manufacturing industry.

From the point of view of technical standards, it should exceed the well-known British API standard. The requirements for new upgrades have been greatly increased. In general, automotive companies are now paying more and more attention to the high viscosity grip of automotive oil to reduce the fuel consumption of gasoline and diesel.

At the same time, they attach great importance to the "stay big" function of kinematic viscosity (which remains within the intrinsic viscosity level in a given application) to ensure wettability.

Acea A3 B3 engine oil is a mainline lubricant.

It is mainly used for general purposes and is widely used in various types of gasoline and light-duty diesel engines. Acea A3 B3 motor oil was often used in early vehicles because it did not meet the minimum performance requirements in the specifications of contemporary equipment manufacturers.

ACEAA3 B3 covers a range of viscosity grades. The most common are:

SAE 10W-40 based on API Group 1 and Group 3 base oil blends.

SAE 15W-40 based on API Group 1 base oils.

It seems to be an index of copper corrosion of lubricating oil.

Hello, refers to the specifications of the oil!

A3B4 refers to the grade of engine oil, A indicates the oil used in gasoline engines, and B indicates the oil used in diesel engines. The number after the letter indicates the grade of the oil, with the higher the number, the higher the grade. A3B4 oil indicates that both gasoline and diesel engines can be used.

Engine oil is very important for the engine, engine oil is called the blood of the engine, if there is no oil in the engine, the engine will not function properly.

Many riders think that engine oil only plays a lubricating role in the engine, but this is not the case.

In addition to lubricating the limbs, the engine oil also plays the role of cleaning, sealing, buffering, rust prevention and heat dissipation.

When the engine is working, the oil will form a layer of oil film in the engine, which can avoid friction caused by direct contact between various parts in the engine, which can protect the engine.

If there is no oil in the engine, the various parts will be in direct contact with each other during the operation of the engine, which will instantly generate a large amount of heat, which is more harmful to the engine.

If the temperature of the engine is too high, it will cause the engine to knock. Detonation is an abnormal combustion phenomenon within the engine.

Detonation will cause the engine to decrease power and increase fuel consumption.

Severe knocking can even lead to piston explosion or connecting rod deformation in the engine, and the cost of repairing such damage is relatively high.