The effect of fully synthetic motor oil is good, and it is not suitable for any car

If it is a car of tens of thousands of yuan, it is a waste to use fully synthetic engine oil, and semi-synthetic is enough.

1. It does not contain sulfur, and the use of fully synthetic engine oil is longer lasting and environmentally friendly.

In the American Petroleum Institute's API definition, the sulfur content of Class I base oils, Class III base oils have < sulfur content, while Class IV PAO sulfur content is 0%.

2. Fully synthetic engine oil has fewer impurities and strong cleaning performance.

After changing the fully synthetic engine oil for the first time, you will find that the small sludge particles in the oil will increase very quickly after a while.

This is because the newly added fully synthetic engine oil will be cleaner and will break down the sludge that has accumulated in the engine oil pipe into small sludge particles.

It is recommended to use fully synthetic engine oil, because Zheng Ma which is a fully synthetic engine oil has a good lubrication effect and can prolong the service life of the engine.

Fully synthetic motor oil.

Fully synthetic motor oil is the highest grade of motor oil. It is ethylene and propylene dispersed from gas or natural gas in **, and then refined into a lubricating liquid composed of macromolecules through complex chemical reactions such as polymerization and catalysis. In essence, it uses the best ingredients, chemical reaction and artificial control to achieve the expected molecular form, the fully synthetic oil parting mold shouter is neatly arranged, the ability to resist foreign variables is naturally very strong, so the physique is better, thermal stability, antioxidant reaction, viscosity change ability is naturally much stronger than mineral oil and semi-synthetic oil, so the best is also the highest.

It's best to choose a fully synthetic motor oil. Semi-synthetic motor oil and fully synthetic motor oil are the two classifications of motor oil. The biggest difference between the two is:

Fully synthetic oils are used at a wider temperature and have a longer service life; The same oil film requirements can be achieved with a lower viscosity of synthetic oils, while semi-synthetic oils need to use a higher viscosity than synthetic oils to achieve such requirements. In other words, in the same operating environment, a fully synthetic oil can protect the engine with a lower viscosity.

Similarly, in the same working environment, fully synthetic oil has a much longer service life than semi-synthetic oil, so although the cost is higher, it is not much higher than mineral oil after comparing the number of oil changes. Compared with semi-synthetic oils, fully synthetic motor oils have the following characteristics:

1. Fully synthetic engine oil has better high and low temperature performance;

2. There is a longer oil change interval;

3. Suitable for worse vehicle conditions.

Car maintenance is a project that every car owner must do for the car, and they must do different projects regularly, among which changing the engine oil is an indispensable item in maintenance.

When adding oil to the car, you can't, you can choose at will, fully synthetic engine oil, than semi-synthetic engine oil replacement cycle is longer, the two free use temperatures are also different, no doubt, fully synthetic engine oil is more widely applicable.

Then there are two kinds of engine oil, and there are also options for cars, fully synthetic engine oil, which is more suitable for luxury cars, or better cars, and semi-synthetic engine oil, which is more suitable for economical and suitable cars. If it is an ordinary family car, then it is good to use semi-synthetic motor oil when maintaining the car, which is a relatively affordable option. For luxury cars, not all of them have to choose fully synthetic engine oil, if the car is a little longer, it is best to choose semi-synthetic engine oil, because the sealing of old cars is relatively poor, and it is easy to leak oil, semi-synthetic engine oil, so it is more suitable.

The new car depends on what kind of car, the best one is to use fully synthetic engine oil, the general half synthetic can be, and the maintenance can be carried out according to the maintenance cycle.

It is best to read the manual carefully when buying a new car, and the instruction manual of each car will have a detailed explanation of the car, including the recommended oil model.

It is best to choose a 4S shop for maintenance when a new car is in warranty, and use the original engine oil recommended by the 4S shop.

Fully synthetic oil is definitely better than semi-synthetic oil (** is also higher), and if the car can use semi-synthetic oil, of course, the cheaper semi-synthetic oil is cost-effective.

It mainly depends on what kind of car you are, it is generally recommended to be fully synthetic, if the car is cheap, you can use a little worse, so it is cost-effective.

Fully synthetic motor oil is not suitable for all vehicles, and it is not suitable for older vehicles. As the "noble" of engine oil, fully synthetic engine oil has good low-temperature fluidity, low viscosity, and less mechanical loss inside the engine after use.

However, the oil film composed of fully synthetic engine oil is also relatively thin, and for some old or low processing accuracy vehicles, due to the large internal clearance of the engine, the oil film of the fully synthetic engine oil cannot fill these intervals, resulting in sealing effect, which is prone to burn engine oil. Therefore, in the selection of lubricating oil, it should be mainly applicable.

Fully synthetic motor oil is a good oil, but it is not suitable for low-cost economy car engines. For most cars, fully synthetic motor oil is a good choice.

The fully synthetic engine oil does perform very well, whether it is a cold start in winter or a high temperature in summer, and the oil change interval is very good, which can protect the engine to the greatest extent. However, the characteristics of its thin oil film are not suitable for old cars with serious wear and tear, or economic models with insufficient engine processing accuracy, because usually the gap between the engine parts of these two types of models is large, and the fully synthetic thinner oil film can not play a good lubricating role, resulting in unnecessary wear. A more viscous oil is needed to seal between the cylinder and the piston rings, as fully synthetic oil flows better than mineral oil.

With the same film strength, the film is thinner, i.e. there is more movement clearance between the piston ring and the cylinder wall. If the fluidity is too good, most of the synthetic oil will flow back to the oil pan after stopping, and the lubrication and sealing of the engine will be damaged, so the fully synthetic engine oil is a good oil, but it is not suitable for low-cost economy car engines. For most cars, fully synthetic motor oil is a good choice.

Fully synthetic motor oil does perform very well, has excellent fluidity, excellent resistance to cold starts in winter or high temperatures in summer, and has long oil change intervals for maximum engine protection.

However, many people think that fully synthetic engine oil is the best engine oil, so they will use fully synthetic engine oil for their vehicles. In fact, it is not the best choice to add fully synthetic engine oil, fully synthetic engine oil due to low temperature fluidity is better, so the viscosity will be lower than that of semi-synthetic or mineral oil, for some vehicles that are relatively old or the engine has been overhauled, due to the wear of the piston in the engine or the assembly after the overhaul is not fine, the gap between the piston and the cylinder block may be relatively large, the use of fully synthetic engine oil with low viscosity, the air tightness of the engine may be affected, and it is easy to burn engine oil or blow-by.

Models with supercharged engines, SUVs, and large displacement models are more suitable for fully synthetic engine oils. The performance of fully synthetic engine oil is better than that of semi-synthetic engine oil, and the fluidity is relatively strong, and it is resistant to cold in winter and high temperature in summer.

There are many benefits of fully synthetic engine oil, but it is not suitable for small cars and mini-cars of about tens of thousands of yuan, because the engine processing accuracy of economic cars of about tens of thousands of yuan is relatively low, and the gap sealing between the cylinder and the piston ring is not very fine.

Having just said so much, the fully synthetic engine oil does have very good performance, good fluidity, excellent resistance to high temperatures in winter or summer, and long oil change intervals, which can protect the engine to the greatest extent. However, fully synthetic engine oil is not suitable for micro and small cars with tens of thousands of yuan.

Tens of thousands of economy cars, (Wilf energy-saving engine oil.

Because the engine machining accuracy is relatively low, the gap between the cylinder and the piston ring is not the finest, this engine often appears in the car price of the lower cost of the model, to be more viscous oil to play the role of sealing between the cylinder and the piston ring, if the use of relatively thin fully synthetic oil, the engine seal will have some small problems, always feel no power to drive. And after stopping, most of the total synthesis will flow back to the oil pan, and the lubrication and sealing of the engine are damaged, so after getting up and starting in the morning, the engine will be subject to greater wear, if it is a more viscous mid-grade engine oil, this problem will not occur in this engine.

Therefore, fully synthetic motor oil is a good oil, but it is not suitable for low-cost economy car engines.