What about Shell and Castrol and Mobil 5W30?

Shell Helix HX8 is an entry-level fully synthetic lubricant, its packaging is very similar to the Helix Ultra series, the color is also gray, as an entry-level fully synthetic lubricant, it can be suitable for most models over 200,000 yuan and turbocharged models.

Mobil 1 is Mobil's top grade fully synthetic motor oil, Silver Mobil is available in three viscosity grades: 5W W-40 and 5W-50. Among them, Gold Mobil and Silver Mobil are fully synthetic motor oils, and Gold Mobil's high temperature resistance, low temperature start-up wear resistance and long-term effect are better than Silver Mobil, and there is no difference in other functions!

Castrol EXTREME is Castrol's top-of-the-line fully synthetic oil, which is available in two versions: EXTREME and EXTREME Force. This oil is formulated with liquid titanium, which is a metal element with very good resistance to low temperatures and corrosion, which can improve the oil resistance to low temperatures and corrosion, and can also reduce direct contact between metals, thereby reducing frictional losses. Extreme protection is suitable for most luxury cars, medium and large vehicles, SUVs, turbocharged models and high-performance sports cars; The JISU version is suitable for some high-performance sports cars or cars with a sporty bias.

I have more say in it, Mobil and Castrol, Shell have used, this extreme protection is Castrol is relatively good, but the use of the feeling is just like that, said to be fully synthetic, much worse than PAO four types of base oil, run more than 8,000 on the obvious sense of attenuation, I now use pure German GT engine oil, run 10,000, I don't feel any problem, the European standard is indeed higher than the domestic standard, the oil is indeed better, after changing this GT containing liquid molybdenum components, Obviously, I can feel that the engine power is different, the running is smoother, and the fuel consumption is much less than the previous oil.

1. The numbers are different: the difference between the oil label is mainly the number before and after W, in fact, the meaning of W is not special. We all know that engine oil has a certain viscosity, and the numbers before and after W are the viscosity of engine oil at different temperatures.

2. The temperature is different: first of all, the number in front of W, which indicates the viscosity of the oil at low temperature, the number range is generally 0 to 20, and the smaller the value, the lower the corresponding temperature. The lower the viscosity value of the oil when the vehicle is started, the lower the temperature, the more likely the vehicle will be to ignite.

If the car is often used in the south where the temperature is not too low, then when choosing the engine oil, the number in front of the w can be controlled at 5 instead of being so small. And if the car is often used in the very cold north, then the number in front of the oil w should be carefully considered, otherwise the temperature is too low and the engine will not start.

3. The power is different: the number behind W, it indicates that when the engine is running, the temperature reaches 100 °C, the viscosity of the oil at this time, the number range is generally 20 to 60, the larger the number, the greater the viscosity, the choice of this number has a certain relationship with the type and use of the car, like some large trucks, heavy-duty vehicles, the engine belongs to the high power output;

The temperature of the engine will be very high, and the viscosity of the oil should also be higher. The probability of a general private car is not large, and the viscosity of the oil can be lower. Of course, if you use the car for a long time, you still have to make it higher.

CastrolThe difference between engine oil 5W-30 and 5W30FE

1. Different in nature: national bank.

Castrol EDGE 5W30FE, FE as the name suggests economical fuel performance, this 30 viscosity, A5B5, GF-5, viscosity is around.

Generally, the viscosity of 20 viscosity oil will be between to, so the difference between using it and 20 viscosity engine oil, or it feels obvious, the fuel consumption is a few cents higher, but the sound of high speed is thicker and calmer than the previous uniform 20 viscosity.

2. Different levels: according to the order of 26 English letters, the highest is currently N. There is no grade for 5W-30FE.

3. The viscosity is different: the number in front of w represents the flow viscosity in the case of low temperature, the higher the value, the better the low temperature fluidity of the engine oil, when the vehicle starts cold.

The better the protection of the engine. The number after w is the viscosity of the oil at 100, the higher the number, the higher the viscosity, the better the protection of the engine at high temperatures.

When choosing these two engine oils, the most important thing is to refer to the high temperature conditions to see which viscosity value is more suitable under high temperature conditions. In addition, if the vehicle is older, it is best to use a more viscous oil.

Because the gap between the components of the vehicle increases after a long time, the oil with low viscosity is easy to escape to the combustion chamber to participate in combustion, which is what we often call "burning engine oil and forming carbon deposits."

It is difficult to achieve adequate lubrication and consumes oil, so it is necessary to find a viscous oil to play a better role in lubrication protection.

Castrol 5W30 and 5W40 have the same minimum temperature, which means that the low-temperature fluidity and low-temperature start-up performance are the same. The difference is the high temperature performance of the two, the maximum temperature that 5w40 can apply is higher than that of 5w30, that is to say, in the environment of 100, the viscosity of 5w40 oil is greater than that of 5w30, and the stronger its high temperature stability, the more it can protect the engine under high temperature conditions.

The above content reference: Encyclopedia - Castrol Extreme.

If you want a high-end engine oil, choose PAO base oil, which is better than the general fully synthetic engine oil. My BMW originally changed Castrol Extreme, the power increase and noise improvement are okay, but the power can feel attenuated after running 5,000 kilometers, and it can be changed for a maximum of 7 or 8 thousand kilometers. Now I have changed to G T Magic Red oil.

After changing the car, it is super silent, and the power is lifted up, and the effect is far more than other engine oils. In addition, the power can run 10,000 kilometers before decaying, and 15,000 kilometers can be changed.

The PAO fully synthetic G T magic red engine oil I am using now, I bought it through their official channels, the quality is super high-grade, the anti-attenuation mileage is 10,000, the power is comparable to the lipids in this mileage, the floor oil is thick, the acceleration response is super fast, and the drag racing is refreshing. But I run a maximum of four or five thousand kilometers with the red line of esters.

It is possible to change the high-end engine oil of 0w30. Engine oil is mainly about quality. My Buick originally used Castrol 5w30, and the power can run seven or eight thousand kilometers, which is very good.

Later, it was changed to G T Magic Red 0w30. I know that the durability of the four types of PAO base oil is very high, but the effect still completely exceeds expectations, the power runs for 10,000 kilometers before decaying, and the engine noise problem is solved after the change. But you are a second-hand car, and you have to use 0w40 for the total kilometers over 120,000.

1. Mobil's advantages: mainly high temperature stability, at the same time, low temperature starting performance is very good, can be quickly pumped to the moving part at low temperature, Mobil 1 0W-30 even down to -50 degrees still has this characteristic. It also effectively prevents the formation of sediment and sludge.

Mobil's disadvantages: Weaker cleaning effect compared to Shell oils. Compared to Castrol, the wear resistance is a little worse.

2. Advantages of Castrol: Castrol has a good protection effect on the cold start of the vehicle, good anti-friction, most people have heard of Castrol engine oil, Castrol this engine oil is significantly the magnetic protection series, but also the advantages of this engine oil. Cold start reduces wear between parts, oil adheres effectively to the cylinder wall, and has strong and effective fusion and flow.

Castrol's disadvantages: However, the cleaning ability is not as good as that of Shell and Mobil products of the same level, the oil decays quickly, and the noise suppression is not a strong point. However, it is generally balanced.

3. Advantages of Shell: It has a cleaning effect, blue shell, yellow shell and gray shell are all engine oils of this Shell series, in fact, the most prominent advantage is its cleaning ability. After a long period of use, the impurities in the car will lead to the production of carbon deposits, which will affect the power of the engine, so the role of this oil is to reduce the production of dirt inside, and there is no need to add auxiliary products such as fuel treasure.

The transmission efficiency is high, so the power response is relatively fast, in the actual driving, borrowing this technology, when stepping on the accelerator, the power response is very fast, this is the ability of Shell oil.