There are often a lot of oil that need to be replaced every time you maintain the oil? Can I mix eng

When it comes to maintenance, some car owners are reluctant to completely replace the remaining oil in the engine, but directly supplement the old engine oil with new oil and continue to use it. This is not desirable. Because the engine oil has been used for a long time, its antioxidants, additives, and effects will slowly become ineffective.

If the old and new engine oil are mixed, the performance and life of the overall engine oil will be pulled down by the old engine oil, which will not achieve the effect of the new engine oil, and may also bring poor power, aggravated wear and tear and other hazards, and even have difficulty in starting.

In addition, different brands of engine oil, base oil or additive composition will be different to a certain extent, and there are many kinds of additives, and the types and proportions of additives used between brands are different, and the product function bias is also different. Mixing different brands of engine oil, under certain conditions, may form cotton wool and particles, causing oil passage blockage and increased wear.

It should also be noted that different car series, different vehicle conditions, and even different regions have different requirements for engine oil, and the applicable oil models are often different. For example, if the car suitable for 5w40 standard oil is mixed with 5w20 engine oil, then the oil standard will not meet the requirements, and the protection will not be in place at all, which is not only poor power, but also likely to affect the life of the engine! Take Kunlun Lubrication KR9-T 0W-20 SN Plus as an example, W - represents winter, and the number in front of W - represents the low temperature viscosity level of the engine oil, the smaller the number, the smaller the low temperature viscosity, and the faster the engine starts; The number after w - represents the viscosity level of the oil at 100, the higher the number, the higher the ambient temperature it adapts to;

Therefore, as long as the raw organic oil is cleaned as much as possible, and then choose the engine oil suitable for your car to change. It is recommended to understand Kunlun Lubrication KR9-T series of fully synthetic high-performance engine oil, which adopts Kunlun Lubrication's upgraded anti-wear technology, which can greatly improve the anti-wear performance, improve the power performance of the engine, prolong the life of the engine, and has excellent high and low temperature capabilities, which can give the engine more comprehensive protection in winter, start more quickly, and drive more lightly.

You need to put out all the old oil and add the new oil!

Generally, the gravity method is used to change the engine oil during car maintenance, so the oil in the oil circuit in the car cannot be all clean, but the general impact is not large, as long as the new oil is in line with the standard.

Engine oil, you can't mix it, if it's a Volkswagen car, you can prepare a little oil, and other cars don't need it.

Whether the engine oil is mineral oil or fully synthetic engine oil, the main component is base oil plus additives, the difference is the proportion of base oil and additives, some brands are 70% base oil, and some brands 90% are base oil. In addition, different brands use different additives, so it is recommended that different engine oils should not be mixed!

It must all be replaced! Never mix and match!

No, you have to replace them all with new ones.

Every time I change the oil, there is always a little bit left, what about the remaining oil? Can it be mixed?

<> Why do you need to change your engine oil every time you do it?

Engine oil maintenance, three-point tomato and seven-point maintenance, is the secret of keeping the vehicle in good condition. Whether it is a novice or an old driver, we all know that the car needs to be maintained on time, but when the vehicle is maintained, we will find that every time we maintain the oil filter, it is a necessary item to change. Why is this so?

We need to start with the role of engine oil.

The full name of engine oil is engine lubricating oil, in addition to the well-known lubricating effect, engine oil also has the functions of cooling, cleaning, sealing, rust prevention and buffering. When the engine is running, the oil is continuously delivered to the friction surface to form an oil film, which in turn reduces friction between parts.

The oil adsorbed on the surface of the parts can also prevent the parts from coming into contact with water, air, acids and harmful gases, preventing the parts from rusting and corrosion.

In the process of oil flow, the sludge, wear metal particles and other debris on the parts will be washed away and brought back to the oil pan, and the heat on the parts will also be taken away to assist in heat dissipation of the parts.

However, with the increase of the use time, coupled with the harsh internal use environment of the engine, the oil will be polluted, and the performance will decline, which will affect the normal operation of the engine oil, and then affect the operation of the engine, and in the normal use process, the oil will also have a certain loss. If the oil level is low, the lubrication will be greatly reduced, widened or disassembled, which can lead to excessive wear of parts and serious damage to the engine.

Therefore, it is necessary to change the oil and filter regularly, considering that changing the oil filter requires professional equipment, we recommend that the owner go to the service station to be operated by a professional technician.

At the same time, we would like to remind all car owners to maintain the vehicle in strict accordance with the provisions of the vehicle maintenance manual, and choose the original engine oil to give the engine the most comprehensive and effective protection.

Yes, if it is in the state of parsley imitation sealing, the shelf life of this engine oil is generally four to five years, if you open the seal and use the leftovers, as long as the first belt is better preserved, basically put it for a year or two is not a problem.

You can cover the mouth of the bottle with plastic wrap and sell the reeds, and then directly buckle the original cap and tighten it. Basically, it is difficult for air to get in, and it is no problem to hold on until the next maintenance.

The oil left over from multiple maintenance should not be mixed. The additives in the engine oil of different manufacturers are completely different, and the chemical composition of various additives is different;

Even if it is the same brand, different product series, the chemical composition may be very different, I can't guarantee that any two brands of engine oil will not produce chemical reactions at high temperature of the engine after mixing, but there will be adverse reactions after mixing the two engine oils, such as flocculents, increased viscosity, etc.

The use of different engine oil for each maintenance will have a certain impact, so it is recommended to use the same brand of engine oil, which is better for engine protection. Try to choose a good brand and stick to it, each brand of oil additives is likely to be different, mixing will cause chemical reactions, may reduce the performance of the oil.

It's okay to try different brands of oil, but the premise is that all the residual oil in the oil channel must be drained before pouring in new oil. Once this step is neglected, it will lead to the mixing of different brands of engine oil, and the consequence is to increase the oxidation and deterioration rate of new engine oil, shorten the service life, and affect the engine performance. Even in the long run, acid and alkali compounds will be produced in the engine, which will aggravate the corrosion of engine parts, and often the gains outweigh the losses.

In addition, mixing different brands of motor oil can also cause the following consequences:

There is an abnormality in the smoke coming out of the exhaust pipe. Mixing oil can change the viscosity of the new oil, which can cause the oil to enter the cylinder and burn, which is often referred to as burning oil.

Oil sludge builds. Due to the mixing of engine oil, the sludge particles in it may accumulate, and the heat dissipation effect of the lubricating oil will be reduced, so that the engine is prone to high temperatures, leading to failure.

Causes wear of the piston rings. Oil mixing can affect the sealing of the piston rings, which can lead to damage to the piston rings over time, and in severe cases, affect the life of the engine.

In short, you can try different brands of oil for oil changes, but be sure to drain the residual oil to avoid oil mixing. (Photo by Dong Peng) @2019