Can Sega 2.0 use winning engine oil? My friend said this oil is very good.

Oil depends not only on the brand, but also on the brand.

Turn a post and do literacy.

First, the role of engine oil: three basic functions: lubrication and friction reduction, cooling and cleaning; Other functions: sealing, leakage prevention, rust prevention and corrosion prevention, shock absorption and buffering.

Second, know the oil product label: viscosity label: such as 5W30, 10W40, 20W50, 0W40, 5W40, etc. 5W40 is the oil model specified in C5.

Quote:

The viscosity of lubricating oil is usually marked by SAE and other grades. SAE is the abbreviation of American Society of Automotive Engineers. For example, SAE40, SAE50 or SAE 15W-40, SAE5W-40, where "W" stands for winter, and the smaller the number before it means the better the low-temperature fluidity of engine oil, which means that the lower the available ambient temperature, the better the engine protection ability during cold start; The number after "W" (with a horizontal one behind it) is the index of high temperature resistance of engine oil. The larger the number, the better the protective performance of oil at high temperature. The engine oil with higher viscosity has greater resistance to the motion system, which not only consumes power to increase fuel consumption, but also increases the temperature of the engine oil, which is easy to oxidize and affects the protection against cold start. Only SAE40 and SAE50 are single-grade oils and cannot be used in cold winter. There are two sets of values, such as SAE 15W-40 and SAE 5W-40. 15 means that the oil viscosity in winter is 15, and 40 means that the oil viscosity in summer is equivalent to 40. This means that this kind of engine oil is an advanced "multi-grade engine oil", which is suitable for a wide range of areas from low temperature to high temperature. The viscosity value will fully protect the engine with the change of temperature.

(SAE) Applicable ambient temperature (℃)

5w -30 C

10w -25 degrees Celsius

15w -20 degrees Celsius

20w- 15°C

30 degrees celsius

40 degrees celsius

50 50 degrees Celsius

Advantages of multi-grade oil:

1. It can be used all the year round, extending engine life and reducing wear (reducing wear caused by cold start);

2. Improve fuel economy;

3. Reduce the consumption of lubricating oil;

4. Reduce wear and tear;

5. Provide good low-temperature lubricity;

6. The oil change cycle is longer;

7. Recommended by most heavy-duty engine manufacturers.

According to SAE method, the existing engine oils in the market are classified. Single-grade engine oil: 6 kinds of winter oil, 4 kinds of summer oil, and multi-grade engine oil: 16 kinds of winter and summer general oil. The brands of oil used in winter are: 0W, 5W, 10W, 15W, 20W and 25W respectively; The brands of oil used in summer are: 20, 30, 40, 50; The brands of general oil in winter and summer are: 5W-20, 5W-30, 5W-40, 5W-50, 10W-20, 10W-30, 10W-40, 10W-50, and so on.

5 refers to low temperature viscosity, which means it can be used at MINUS 30 degrees. The smaller the number before w, the better the adaptability to low temperature;

40 refers to high-temperature viscosity, and the higher the temperature after W, the better the high-temperature adaptability and the higher the high-temperature viscosity;

The simplest judgment is that the manufacturer specifies the model. The smaller the front, the bigger the back, and vice versa. Of course, don't choose the one with the largest coverage, try to choose the most suitable one, that is, the one designated by the manufacturer.

Third, understand the oil grade:

Quote:

sa…………………………………………………………………………………………………………………………………………………………………

Ca ……………………………………………

The details are as follows: api (american petroleum institute) is the abbreviation of API specific gravity, and API grade represents the grade of engine oil quality. It uses a simple code to describe the working ability of oil.

API oils are divided into two categories: the series starting with "S" stands for gasoline oils, and the specifications are: API SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL and SM. The series starting with "C" stands for diesel engine oil, and the specifications are: API CA, CB, CC, CD, CE, CF, CF-2, CF-4, CG-4, CH-4 and CI-4. When the letters "S" and "C" exist at the same time, it means that this oil is a common type of gasoline and diesel.

The quality grade of engine oil depends on the quality (at present, there are eleven grades of * * *, all of which are backward compatible, and there are no SI and SK grades):

At present, there are only three kinds of mainstream, namely SM, SL and SJ, among which the highest level of SM is becoming more and more mainstream. Now basically semi-synthetic products and all synthetic engine oil are SM-rated.

SM- the highest level at present-can be used for all currently used automobile engines.

SL- at present-can be used for automobile engines developed in 2004 or before.

SJ- at present-can be used for automobile engines developed in 200 1 year or before.

Four, total synthesis, semi-synthesis, mineral oil selection:

Engine oil consists of more than 95% base oil and additives. Additives have their own formulas, but there is little difference, while the base oil is quite different. The so-called synthetic, semi-synthetic and mineral oil that determine the price difference are not determined by different additives, but by different base oils. Mineral oil is obtained from petroleum by traditional solvent or hydrocracking, while synthetic oil is made from natural gas, methane and propylene. Mineral oil can't remove all bad products and impurities, while synthetic oil has better composition, better thermal stability, antioxidant reaction and viscosity change resistance. The quality of engine oil mostly depends on the base oil, so the debate about engine oil base oil is the biggest. As is often said, there are three types of base oils, four types of base oils and five types of base oils. Some people think that the synthesis of three types of base oils is incomplete, and only four types of base oils PAO and five types of base oil esters are completely synthesized. Mobil sued Castrol for this, but the result was lost. That is to say, three types of base oils legally recognized can also be called all synthetic engine oil, and three types of total synthesis are the mainstream, including Total 300V, gray shell and most of them are called all synthetic engine oil. The two combine to form semi-synthetic oil.

5. How to choose C5 engine oil?

The model of Shenlong 1.6 is 5w30 SL, SM, old 2.0 engine. Requirements: In-service 5W30 SL, SM and 2.0 CVVT engines have high viscosity requirements, and W40 engine oil must be used. Since Shenlong originally only had Fukang's 10W40SJ low-end engine oil, it was designated to use 10W40SJ.

Next, let's talk about C5. According to the specifications of Shenlong, using the label of 5W40, it is estimated that the CVTS engine of 2.3 also requires high viscosity. At the same time, Shenlong was really embarrassed to match 2.3 Fukang SJ engine oil, so it returned to the European regulation of 5W40.

Improper selection of viscosity label will adversely affect the engine. If the viscosity is lower than the specified standard and the high-temperature viscosity is insufficient, it may lead to low oil pressure, decreased lubricating ability and increased wear. Choosing a viscosity higher than the specified standard will inevitably lead to poor oil fluidity, increased resistance, poor low-temperature startability and accelerated wear, which is not conducive to oil consumption. Then the oil consumption is accelerated, the exhaust emission is deteriorated, and the engine noise is loud. It should be used according to the manufacturer's recommended model and local conditions. Undoubtedly, 0W50 has the widest application range, but it may not be the best one for your engine. 300V is also a diester, with excellent performance, but short service life, which is not suitable for civilian vehicles running downtown every day.

6. Why can't 2.3 use 5W40 instead of 5W30 engine oil?

Understand the above, everyone will understand. If you don't understand and need a clearer chart, that's fine. Then it goes on to explain that the new 2.0 engine and 2.3 engine use variable valve technology such as CVVT and CVTS, and the viscosity of the engine is high. Let's compare the development requirements of Shenlong 10W40 in 2003 with the comparison of several oils:

Remarks: I made this table a few years ago, and now Total 7000 and 9000 have been upgraded to the highest level SM. Hereby explain.

As long as you look at the column of kinematic viscosity 100 degrees, you will know why 5W30 can't be used in new 2.0 and 2.3 engines (only Total 5W30 is listed, and the indexes of the same model of other brands are similar), and the high-temperature viscosity index is too low for Shenlong to allow.

7. Can the oil be replaced? Do you need to clean?

1, which can be replaced without cleaning. Of course, it doesn't include money, but it's not appropriate to keep changing.

2. If synthetic oil is used, use it as soon as possible. If you suddenly switch to synthetic oil after tens of thousands of kilometers, the super cleaning ability of synthetic oil will lead to oil leakage from the old engine. Although it will not affect the use, it is not good after all.

3. Old cars should be replaced with oil with higher viscosity, because there are more mechanical gaps to be filled with high viscosity oil. For example, it is suggested to change it to 5W30,100000 km in a few years.

Eight, buy licensed and genuine, beware of fake and parallel imports!

Oil is unrecognizable to the naked eye, especially the fake oil filled in real packaging. Even Aika sells fake oil (it's not intentional, so it's hard to tell). Total 9000 replaced the packaging barrel, and 30 yuan sold one when it was the highest in the country. Why buy it? There are more fakes of other engine oils. Therefore, it is difficult to talk about genuine products without authorized channels. Although most fake engine oils are ethical, they are only degraded by many grades, such as passing Total 3000 as 9000, but most of them will not cause immediate damage to the engine. However, the licensed engine oil is tens of yuan more expensive, which is 10%. This is not lacking. Compared with gasoline, the quality of engine oil is one kilometer or twenty cents, and the difference between true and false engine oil is even smaller. Why not buy it? Rest assured is money!

Nine, about the oil change time: engine design, engine oil design and grade, machine filter design and quality all determine the replacement period. Shenlong said 15000 forced replacement, far exceeding 5000 km in Japan and 7500 km in Germany. However, the design of Shenlong engine does have a long-term effect. Advanced long-term engine oil and French Guo Fu long-term mechanical filter can be used for a long time. However, in view of the fact that the oil may not last that long, and the domestic quality of the machine filter is much worse, such a large maintenance interval is still of great publicity significance. At the same time, it is definitely good to change the oil frequently, which is one of the reasons why Japanese engines often run more comfortably after many years.

My suggestion is: replace it once after the running-in period of 3000 kilometers and once after the running-in period of 7500 kilometers. These two additions and replacements can remove impurities in the running-in period earlier, and then replace them every 7500 or 10000 or even longer, depending on your oil, filter and use environment. Personally, I use 100% original French Fu Bao machine filter, and change it once every 10000 when I use Total 7000, and once every11000-12000 km when I use Total 7000. The 100plus of moutul Mott is 7500.

Shenlong's policy of compulsory oil change only after 65,438+05,000 kilometers gives us a good opportunity to save money, that is, except for compulsory oil change, all other additional oil change projects are done in trusted franchise stores outside, and the maintenance is beyond Shenlong's control anyway. Theoretically, people who drive less only change the oil at 4S 15000 km, and get insurance at 30000 km. Thanks to Shenlong, everyone is forced to earn only once by 4S, with a maximum of 30000 km. Compared with Mazda's three-year warranty of 65,000 kilometers in mandatory maintenance, the maintenance information networking and oil change machine filtering time is once 120 yuan, and mandatory maintenance generally needs 6- 12 times, which is really very happy.

X. Summary: If you follow the standard of general maintenance workers (including 4S), as long as it can be lubricated, then don't worry about his oil, and don't read this post. If you have to pay attention to the same amount of money, then you must resolutely use 5w40 and avoid using 5w30 engine oil (although the cost and price of 5W30 of the same grade are always slightly higher than or equal to 5W40). Of course, the label of 5W40 appears in higher grade oil. Many brands of mineral oil and semi-synthetic oil have no 5W40 label, and most of them are 10W40. If you really need to reduce the maintenance cost, then I suggest that you choose SL and SM grades of 1040, mineral oil 100 yuan or more to semi-synthetic oil 200 yuan or more, instead of 5W30, or even 300 yuan of fully synthetic SM from 400 yuan.