Can motor oil be blended? How do auto repair shops generally add?

Engine oil can not be mixed, mixing affects the quality of engine oil, auto repair shops generally do not mix engine oil, they are professional must know. However, I always bring my own engine oil to change it, so this will not happen. I still bring imported GT Magic Red engine oil, no fakes, that use is still assured.

Hello: It is not recommended to mix the engine oil, the consequences of the oil mixing, at least it will affect the effect of the new engine oil, and the heavy will change the overall viscosity of the engine oil, affect the service life of the engine, and even cause serious safety hazards such as burning engine oil and pulling cylinders. The control of oil quantity is to observe our oil gauge caliper to control! Hope!

Hello, it can't be mixed, it's not good for the engine, and the oil is more likely to deteriorate or lose its due performance, and the amount is based on the oil scale scale.

Theoretically, it is possible to mix the same grade of oil, but it is not recommended! In general, different kinds of oils contain different chemicals, and mixing them can lead to accidents and pose a huge safety hazard. Mixing should be avoided as much as possible, otherwise it is difficult to accurately check the quality of the oil.

If mixing is required in a special case, there are some mixing principles that can be followed. The way of refueling each master in the auto repair shop may be different, and it is generally added according to the manual of the model, and the deviation is not large!

Different types of oil contain different chemicals, and mixing should be avoided as much as possible, otherwise it is difficult to accurately check the quality of the oil. If you need to mix under special circumstances, you can mix the oil according to some mixing principles and strictly follow the mixing principle to the car, but mixing different types of oil may produce turbidity, aggravate the corrosion of engine parts, and reduce the cleaning ability.

The engine oil cannot be mixed, and the auto repair shop only adds the same brand and the same model, and it is impossible to add it indiscriminately.

Of course, you can't mix it up, add it indiscriminately, let go of the old one, and then raise the salary.

Different types of oil contain different chemicals, mixing may lead to accidents, there are huge safety hazards, and mixing should be avoided as much as possible.

Precautions for changing engine oil:

1. Pay attention to the time of changing the oil, the time of changing the oil is generally based on the number of kilometers and time, whether you listen to the old driver or read the instructions, you will give a suggested value, for example, ordinary mineral oil in 5000 kilometers or half a year, semi-synthetic oil 7500 kilometers a change, fully synthetic oil 10000 kilometers a change.

2. Pay attention to the amount of oil added, the amount of oil should be slightly lower than the scale on the oil dipstick, and do not add too full. Engine oil is extremely important for the movement of the engine, as it is responsible for lubrication and heat dissipation. Therefore, at any time, oil must not be lacking for the engine, but excessive addition (exceeding the upper limit of the scale) has bad consequences.

Too much oil will increase the rotational resistance of the crankshaft, reduce the output power of the engine, and the excess oil will enter the combustion chamber to participate in combustion, causing the vehicle to burn oil, emit blue smoke, and increase fuel consumption.

3. Choose a good engine oil, from the perspective of the type of engine oil, the most common on the market is semi-synthetic engine oil and Quanxiao Rankai synthetic engine oil, this is because the technology of automobile engines is becoming more and more advanced, and the requirements for engine oil are getting higher and higher. (Photo by Chen Jie2) @2019

You can mix it, but it is not recommended, if it is for emergency, you can deal with it. It should be noted that no matter how many engine oils are mixed, the oil label and grade need to be consistent, such as the same fully synthetic 5W-30 or the same fully synthetic 5W-40.

The principle of oil blending:

In general, mixing should be avoided as much as possible, otherwise it is difficult to accurately check the quality of the oil.

Oils can be mixed in the following cases:

The quality of similar products is basically similar, or high-quality oil mixed with low-quality oil is still used as low-quality oil.

It is necessary to adjust the physical and chemical properties such as viscosity of the oil, and use different grades of the same oil to mix with each other.

Different types of oils, if you know that the two kinds of mixed oils are without additives, or one of them is without additives, or the two oils are added with additives but do not react with each other, they can generally be mixed, but the quality of the high-quality oil will be reduced after mixing.

Generally, mineral oil can be mixed with each other, and mineral oil and semi-synthetic can be mixed more, and the mixture between fully synthetic oil and mineral oil should be cautious.

Photo by Pacific Automobile Network Luo Ting 1).

Influential.

Different kinds of oils contain different chemicals, and mixing them can lead to accidents, posing a huge safety hazard. Try to avoid mixing, otherwise it is difficult to accurately check the quality of the oil. If mixing is required in a special case, there are some mixing principles that can be followed.

If the oil is mixed in strict accordance with the mixing principle, it will not have much impact on the car, but it may be cloudy after mixing different types of oil. Due to the different chemical additives of different brands and models of engine oil, there will be a chance of chemical reaction after the mixing of these chemicals, which will reduce the lubrication effect, and may also produce acid and alkali compounds, which can aggravate the corrosion of engine parts. Most oil dispersant detergents use sulfonates, while some oil dispersants are salicylates.

The two are incompatible. If the two lubricants are mixed together, there will be delamination, cloudiness and reduced cleaning power.

You can mix it, but it is not recommended to do it, if it is for "emergency", you can also deal with it, and many riders have tried to mix the two oils. It should be noted that no matter how many engine oils are mixed, the oil label and grade need to be consistent. However, it is best not to mix, although everyone has the same label, but the additive composition is different between different manufacturers, which leads to the difference in the composition between two oils of the same label.

In the light of the case, it will not be able to mix, and in severe cases, it will even cause a chemical reaction that will cause the oil to fail, which will cause the engine lubrication system to fail.

Different grades of motor oil under the same brand can be mixed to some extent, such as between 5w20 and 5w40. Although the viscosity of the two is different, the mixing and addition will not produce a chemical reaction or completely fail to fuse. It should be noted that this situation is not intended to be a long-term solution, but rather in an emergency situation, it is best to be able to change it in a short period of time and unify the brand and label of the oil.

The role of engine oil is to lubricate and reduce friction, auxiliary cooling, sealing leakage, shock absorption and buffering of various parts of the engine, if the lubrication is not in place because of mixing, the damage to the engine can be more than a bottle of oil, oil mixing, there are cross-brand, cross-category, cross-label, in order to have a longer life of the car, or do not mix the oil.