First, the most cost-effective recommended oil
1. Castrol
Castrol is a recognized expert in lubricating oil in the world. The success was due to Charles cheering wakefield. It was in 1899 that he founded Castrol, a professional lubricant company, and established the company's core values, namely, technical pioneer, winning, enthusiasm and outstanding performance. These values can still represent Castrol and are the core strength of Castrol's success. Castrol has lubricant factories in more than 70 countries around the world, and 12 technology research centers in Britain, the United States, France, Germany, Italy, Japan, Australia and other countries to ensure that Castrol lubricants become the most competitive products.
The most cost-effective oil recommendation
2. Movable
New york Standard Oil Company, one of the successors of Standard Oil Company, was renamed Mobil Company. 1999, Mobil Oil and Daniel F. Akerson Oil (Standard Oil of New Jersey, one of the successors of Standard Oil Company) used the names of Exxon and Daniel F. Akerson successively. ) merged into Daniel F. Akerson Mobil and became the largest oil company in the world.
3. Shell
Royal Dutch/Shell Group, also translated as "Shell", is the largest oil company in the world, headquartered in The Hague, the Netherlands, and formed by the merger of Royal Dutch Oil Company and British Shell Company. It is a major international producer of oil, natural gas and petrochemical industries, and the largest retailer of automobile fuel and lubricants in the world. It is also a pioneer in LNG industry and has rich experience in financing, management and operation. The business covers the whole world 145 countries, with nearly 90,000 employees, and the oil and gas production accounts for 3% and 3.5% of the global total output respectively. As the largest industrial company in the Netherlands, it ranked first in Fortune Global 500 in 20 12. On August 2012 16, Shell's largest lubricant project started in Tianjin.
4. He Cheng
Fuchs Petroleum Co., Ltd. was established in 193 1, and its headquarters is located in Mannheim, Rhine. After more than 80 years of development, it has become the world's largest professional lubricant manufacturer and the only professional lubricant company in Germany with global business. Specializing in developing, producing and selling all kinds of vehicle lubricating oil, motorcycle oil, industrial lubricants and special lubricating grease. As a world-renowned multinational company, Germany's Flowserve Petroleum Group has established nearly 80 subsidiaries in more than 80 countries around the world. Through the continuous efforts of thousands of employees around the world, FOSS has always maintained a leading position in the international lubrication field and is known as a global lubrication expert.
5.longpan
Resource-saving, enterprise-saving and ecological-saving are the foundation of Longpan enterprise. Every moment, the available oil resources on the earth are decreasing. Lubricating oil with petroleum as the main raw material is a non-renewable resource and a resource-consuming product. Therefore, it is an important mission of Longpan Petrochemical to promote resource conservation and reduce unnecessary waste of resources. Longpan always adheres to the ecological concept of giving priority to protecting resources, and strives to build a resource-saving enterprise supported by ecological technology and ecological culture.
Second, how to choose the right automobile oil
1. To buy oil, you must first understand the "viscosity grade". Too large or too small viscosity will cause damage to the engine. The number after W indicates the viscosity of the oil when the car is running and the engine is at high temperature. Some precision engines require a viscosity of 20,30 at high temperature, and some engines with low manufacturing technology require a viscosity of 40,50, which is mainly based on the values specified in automobile design. When buying engine oil, this value must refer to the viscosity value specified in the automobile instruction manual and must not be changed, otherwise it will be harmful to the engine or cause problems such as increased fuel consumption.
2. When the vehicle travels for more than a certain kilometer (for example, 65438+100000 km,1.50000 km), the engine will be worn to a certain extent, and the air tightness is not strong. You can try to use first-class viscosity oil. The obvious feature of weak air tightness is "burning oil". Before changing the oil, the dipstick shows that the oil quantity is obviously reduced or insufficient. You can try to use an oil with higher viscosity when changing the oil next time.
3. The core problem that can't be wrong: the low-temperature fluidity of gasoline in winter.
The numbers before w, 0w, 5w, 10w, 15w and 20w indicate the mobility of gasoline in the environment when the car is not started. The lower the value, the better the fluidity can be maintained at lower temperature.
What is the lowest temperature in winter in the area where cars drive? You must choose an oil with a lower temperature than this area. For example, in the south, above 0 degrees, the number of times does not affect. In some places in the north, when it is tens of degrees below zero in winter, you should basically choose 0w or 5w. Improper selection of this value may lead to serious engine wear during cold starting in winter.
4. Don't be superstitious. Question 1: quality grade
The letter in front of the engine oil label, S represents the engine oil of gasoline engine, and SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM and SN represent the quality grade of engine oil. The lower the letter, the higher the grade. This grade is comprehensively evaluated according to international standards, representing cleaning ability, wear resistance, oxidation resistance, oil stain resistance and acid resistance.
The higher the grade, the better. However, in practical application, according to the relevant standards formulated by "api gravity", the oil grade above sL is enough to meet most vehicles on the market. It can be purchased according to the quality grade required by the automobile specification without unnecessary pressure. Of course, if you are not short of money, it is definitely a good thing to try to choose a higher-end one.
5. Don't be overly superstitious. Question 2: Mineral oil/semi-synthetic oil/fully synthetic oil
(1) Mineral oil: separated from crude oil, with weak stability protection.
(2) Semi-synthetic oil: It is extracted from mineral oil, and its properties are very close to total synthesis.
(3) Fully synthetic oil: propylene and ethylene dispersed from gas in natural gas and crude oil are refined into polymer lubricating fluid through complex chemical reactions such as polymerization and catalysis. It uses better components in crude oil to achieve the expected molecular shape through chemical reaction and manual control. It has a good composition, and its thermal stability, oxidation resistance, viscosity stability and other parameters are far stronger than mineral oil and semi-synthetic oil.
For some low-end cars, the engine manufacturing is not very precise, and the requirements for engine oil are not very high, so please refer to the instructions for the use of engine oil. Under normal maintenance, most engines using mineral oil and synthetic oil can't be detected within 200,000 kilometers of vehicles, but the difference in maintenance costs is not small.
However, for high-end imported brands, the engine has strong air tightness and serious high-power wear, which must not be lower than the bottom line required by the manufacturer, otherwise it will damage the engine.
6. Oil additives look at the performance of oil except lubrication:
Most engine oil manufacturers will make their own advertising slogans, such as the sports performance promoted by America/Rich, the cleaning performance promoted by Shell, and the cold start advertising slogan of Harvest/Stoker, which are of great reference value. Each brand has its own additive formula, most of which are consistent with the propaganda content. You can choose the right brand oil according to the driving environment and scene of the car.
The above is the recommended oil content with the highest cost performance. I hope it helps you!
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